Here's a small comparison of two problematic games and differences between emukidid's RiceVideoLinux.ini and FIX94's RiceVideoLinux.ini, which teorically have the same settings but they have different codification, so it explain me why those issues still occur:
emukidid's RiceVideoLinux.ini
Beetle Adventure Racing: sky and trees all messed up
View attachment 290778
Yoshi's Story: broken everything
View attachment 290779
FIX94's RiceVideoLinux.ini
Beetle Adventure Racing: fixed skyboxes and trees, almost perfect GFX.
View attachment 290780
Yoshi's Story: you can actually see the levels and other things, still can't correctly see eggs or enemies but that's a huge step in that
View attachment 290781
These are just two examples, i'm going to test a few more games that had trouble before before FIX94's fix.