I'm currently playing a bard that boosting up speed & HP. Am I on the right track?

Thought I'd be less squishy with the high HP lol.

After playing for a while, I noticed that....

1) Bard don't get exp if they're purely supportive (no attacking) in parties?

2) Dungeon parties are purely rush towards the boss & spam skills? It takes like less than 10 minutes to complete it. Is this how it is even at higher levels?

Hmm, looks like doing dungeon runs won't give much exp. People usually do those for items/equipments? Also being a supportive bard, are there any disadvantages for supporting from behind? Seems like I can't get the loot from the main bosses, I do get some items but I'm wondering whether the DPS-ers have higher chance at better loots since they're the ones doing all the killings.

Even at lvl 60+, the dungeons are mainly rush to boss style?

I didn't know we should retake the dungeon quest for extra exp from the quest reward lol.
I thought just gain exp from the monster kills.

Getting hang of this game already as I managed to land on a few good random parties with helpful people. Normally it's always very disorganized & messy, people running all over & doing their own things only.