Larian,
I'm having a blast with patch 6. The level of passion for this project is awe-inspiring, so thank you for putting all this work into shaping up the game !
I have a ton of feedback in general (please make everburn blade sheathable :)), but to avoid diluting too much, I'll focus on the main thing: I'd like to see
Hide become a standard action for all classes except for Rogue (via Cunning Action).
The reasons are very much the same as for the long-requested removal of advantage on high-ground and backstab: advantage is such a powerful mechanic in D&D that a quick way of getting advantage is almost always going to be prioritized over other actions. I'm specifically referring to casters and fighters here: given the relatively generous line-of-sight and vision cones in combat situations, it's still relatively easy to obtain advantage through positioning and hiding, which essentially makes the bonus action just a free almost-guaranteed advantage in most situations. From some loose estimations observed during gameplay, for fighters, that translates as a ~+20% chance to hit compared to no-hide, or ~+15% for casters. So with the exception of Shadowheart (usually like to use her BA for healing word or some such), most of my character's turns are: position outside of cone of vision, hide, then attack. This gameplay suits rogues very well, but not so much other classes.
Further, it's hard to say without having access to level 5 and up, but I expect the Fighter will become overpowered compared to the rogues at higher levels, since they will have access to additional actions while having the ability to hide for one of them. As Rogue is my favorite archetype, it's also a bit of a selfish attempt on my end to make rogue more useful

(especially given that their lockpicking abilities are a dime a dozen these days).
Other forum members, I am curious to hear your thoughts. I haven't seen this topic raised quite as much as the infamous high-ground + backstab, so wondering if it's just me.
Thank you !