You paid for BG3 and will get it a little later, right now it is early access but it aint open/cooperative game development. Feedback is always valuable although I suppose right now it's more about seeing how the game works and if it works at all.
Bugs will probably fixed as soon as they are found and if those are the "unimportant" ones, then taking those out of the equation won't have them become "important" later.
Don't spend hundreds of hours if it wasn't asked for, together we can cover all bugs and features with "only" dozens of hours
However, there has been little to no direct interaction on the forums. Forums are usually the smallest, most vocal part of the target demographic. With reddit close second
