Not sure whether this is the best sub-forum for this (mods, feel free to move this elsewhere), but:

TAA is clearly the best looking AA variant available in BG3, by far. However, unlike other AA options (or using no AA at all), the basic form of TAA that BG3 implements introduces lots of "shimmering" artifacts. These can be clearly seen even in the main menu, once camera becomes static - just look at the rock at the bottom-center(right) of the screen. In the character creation / level up screen, this is even more noticeable - just look at the rocks in the background behind the waterfall. Some more refined form of TAA, like id Software's TSSAA, would be awesome.