There are vanilla android phones? Which ones are those?

I would recommend OnePlus phones - their Oxygen OS is really good - fast and snappy.
I have a OnePlus 3 from 2 years ago and trust me - the performance never drop.
I upgraded to S9+ because I want to have a phone with more features, better screen + camera and Samsung Pay.
If you only intend to use for daily normal use, OnePlus phones are ok.

Alternatively, try Google Pixel phones - there are real vanilla android phones, but can only get AP set in Malaysia, and they are flagship phones.

OnePlus, Motorola, Nexus, Pixel and many others using stock Android.

I didn't know Motorola was still alive! 

I'll look into that as well, thanks man

Moto Z, Moto Z Play and many other models used stock Android. I’m using both Z and Z Play. Only from Z2 and Z2 Play onwards, the UI changed to stock Lenovo UI.

Is something wrong with the stock Lenovo UI?

Initially I was gonna try a Pixel, but I like money.

I'll look into OnePlus phones, seems that they have what I want. How's the camera like on that?

Is blackberry phone still viable in Malaysia?

Just out of curiosity:
- what iphone model did you use for 2 years? Iphones are know to have longer lifespan than androids. My iphone 5 lasted me almost 5 years before I change it. You need to know not to upgrade your firmware as newer ones will slow down the phone.
- what you dislike about your Oppo androids? Maybe those things that you dislike also exist in pure androids like Pixel series.
- what is your requirement for using a phone? Camera? Design? Performance?

Just out of curiosity:
- what iphone model did you use for 2 years? Iphones are know to have longer lifespan than androids. My iphone 5 lasted me almost 5 years before I change it. You need to know not to upgrade your firmware as newer ones will slow down the phone.
- what you dislike about your Oppo androids? Maybe those things that you dislike also exist in pure androids like Pixel series.
- what is your requirement for using a phone? Camera? Design? Performance?

I didn't know Motorola was still alive! 

I'll look into that as well, thanks man

Anyone with alternatives?

Don't get me wrong, iPhones are great for the first year or two, and then they become like my grandpa.

Let me tell you how slow my grandpa was, he had to cut off three of his toes because of diabetes, had minor sclerosis, and was obese. So he was a very slow man.

Androids on the other hand, idk la, just doesn't feel right. Have been using an Oppo F5 for a few months now but I hate everything about it.

Anyone with alternatives?

iPhone 6. It was slow to the point that I would give up texting. Don't get me wrong, during the first year or two I loved it.

The thing I hate about my Oppo is that it's ALREADY slow after a month and I don't have that many apps installed. I have to clear memory every 5 minutes of use.

For me the most important is the performance, followed by the camera and then design.

I think I'm a funny guy. People usually laugh when I open my mouth. Not sure if I'm really funny or face problem though

Always avoid oppo and vivo it doesnt represent all android.

Oppo and vivo are for to cheat ppl that are easily fall for advertisment and marketing with social influencer and celebrity.

You deserve to get cheated by oppo.

Their low end are snapdragon 400+ and their highest end also snapdragon  600+ while real flagship from Samsung, HTC, one plus one, sony all uses snapdragon 800+ for their flagship.