Yup. But swirl elemental damage has one weakness.
It can’t crit. That’s why it can’t deal really huge damage and people generally aren’t too bothered by it.
But the base anemo damage that causes it can crit.

I guess you can say that it's reaction is to take the element it comes in contact with and because swirl can only take the initial element, when you swirl pyro, that pyro will spread to whatever that get hits by the swirl. Swirl is a very good method to spread element without needing to use AOE skill, like you can swirl a camp fire and spread that pyro to mobs nearby. Or you can drop Ganyu E and swirl it with Sucrose E or Q, instant AOE.

Swirl are mostly use to reduce elemental res on mobs, so that your DPS that is using the same element that is being swirl can do more damage. Another use is it's a very good CC. Basically Swirl + VV = very good damage buff.

Sucrose attack does anemo damage. It's anemo and not swirl. Anemo and swirl is different. Anemo is green/teal colour. Swirl is when anemo meets pyro/hydro/cyro/electro. Try observing the damage number and colours. Let's say you hit an enemy that is inflicted with pyro. There will be 2 numbers, 1st is green, which is Sucrose anemo damage, the second will be red, which is swirl damage, and it is not pyro damage. The distinction is important in considering the effects of equipment.

I got a C1 Sucrose, level 80, 560 EM, and using VV set does around 2287 swirl damage. Swirl is only dependent on level and EM value, VV does increase swirl damage though. Currently I'm using Mappa Mara, and ER,EM,EM artifacts. I'll swith the artiifact to EM,EM,EM if I get Sacrificial Fragments. She's not the main DPS. She stills a group killer though. Easily clear the previous Floor 12 Chamber 1 first half that has many mobs.

If you're planning to make Sucrose C6 main DPS, use attack%, Anemo% and Crit%, and VV set..

I'm guessing you're currently playing Sucrose as a AoE Burst? I don't intend to play her as a main DPS cause I probably wanna mix her with Keqing or HuTao or Childe. So if it's just using her as a Q & E spam, I should just pump up her EM to maximize her swirl damage?

Yea I just read about it can't crit several hours ago. Was confused at first cause I'm pretty sure I saw some Sucrose players pump up crits. I guess those are main DPS Sucrose. I'm not really sure how I wanna build her yet, still learning & considering my options.
Sucrose brings a lot of utility support to the team indeed. So the 1st step for me is to understand the utilities that she brings i.e. CC, resistance shred, EM buffs, spread aura elements etc. From there only will know how to fully maximize her utility potential.
I'm guessing you're currently playing Sucrose as a AoE Burst? I don't intend to play her as a main DPS cause I probably wanna mix her with Keqing or HuTao or Childe. So if it's just using her as a Q & E spam, I should just pump up her EM to maximize her swirl damage?

1st post updated!

holy moly i really hope it doesnt extend my daily play time too much with this  might struggle to fit in spare playtimes for these, looks awesome tho

you either build her as an EM aoe nuker finisher or VV battery support in general, anything else is just meme-ing if youre gonna build her as crit based DPS, youre pretty much gonna get alot better results from other units with similar investments. But whatever that floats ppls boat you know, some ppl just wanna use sucrose that way.

I'm playing her more like a support stagger currently. In Abbys floor 11 second half. She can easily stagger the treasure hoarder. If you have sacrificial fragments, then go full EM. 3 times E should be enough to recharge your Q. She can also clear out the cicin in floor 12 chamber 2 pretty fast.

Even if you play her as main DPS, she still needs someone as to apply element for her to swirl.

Anemo can crit, swirl does not.

you either build her as an EM aoe nuker finisher or VV battery support in general, anything else is just meme-ing if youre gonna build her as crit based DPS, youre pretty much gonna get alot better results from other units with similar investments. But whatever that floats ppls boat you know, some ppl just wanna use sucrose that way.

The main question you should ask yourself is how does she actually fit in to your current available team comp to min max your line up potential, decide and work from there, you'd get a clearer picture how youd wanna build her.

AoE Nuker sounds fine. Like you said, better put that amount of investment into a main DPS. I'll probably pair her up with Keqing cause I just built Keqing. Tried to play Keqing a bit yesterday, didn't really like it. The camera angles keep jumping around & zoomed in frequently. So I can't even see where's my Keqing & don't know what I'm doing most of the time. Just spamming left clicks with E & hope something dies. Pretty sure I'm playing Keqing wrongly there.

That bolded part is good news indeed! Haha.
I've managed to reach floor 12 now. Hence, I'm looking into strategies to clear it.

AoE Nuker sounds fine. Like you said, better put that amount of investment into a main DPS. I'll probably pair her up with Keqing cause I just built Keqing. Tried to play Keqing a bit yesterday, didn't really like it. The camera angles keep jumping around & zoomed in frequently. So I can't even see where's my Keqing & don't know what I'm doing most of the time. Just spamming left clicks with E & hope something dies. Pretty sure I'm playing Keqing wrongly there.

I am the other way around. I main Keqing from the start and can't get used to other DPS since most of them are not as fast as Keqing lol Tried them and in the end go back to her

That bolded part is good news indeed! Haha.
I've managed to reach floor 12 now. Hence, I'm looking into strategies to clear it.
AoE Nuker sounds fine. Like you said, better put that amount of investment into a main DPS. I'll probably pair her up with Keqing cause I just built Keqing. Tried to play Keqing a bit yesterday, didn't really like it. The camera angles keep jumping around & zoomed in frequently. So I can't even see where's my Keqing & don't know what I'm doing most of the time. Just spamming left clicks with E & hope something dies. Pretty sure I'm playing Keqing wrongly there.

gratz! thats a pretty good piece, not god roll but very close, 10+ cr is alot for a substat, plus the rest of the stats are prime too

Really pain to farm.

The goblet: Physical Damage
The headpiece: Crit Rate

Lucky I still got 25 Fragile Resin.

When using her Q, remember that she is not lock into the animation from start to finish, you can use her to attack 1-2s after her Q activate. This allows you to continue to DPS while her Q is still in animation.

You all say E la Q la - which one is which ah?

I'm controller user so I only know skill or burst.

Looks like E is skill and Q is burst! Got it!

Yes, and if E is ready can immediately E E do massive damage that time.

When I first used her I also was pausing watching the animation, and then I realize one day I was moving around even when the animation is on-going.