In EA, it's reasonable to make major changes to UI, systems, etc., but once the game is released, those things are going to be more or less etched in stone. Some minor tweaks might be forthcoming if there are major issues that need correcting, but I think post-release, the most likely changes, and what's worth giving feedback about, are going to be quality of life issues, small UI tweaks, etc. Harping on about (eg) shove as a bonus action post-release is just wasting your breath.
Larian has done those major changes post release in the past though - so I think it will be a good idea to provide thorough feedback once the game is out. Larian might not plan to do much post release - but perhaps they might.
