Just a news update on something I just found out today. Between Ubuntu 22.10 and 23.04, with the same hardware and Nvidia driver, there is an improvement in GPU when benchmarking using GravityMark (From https://gravitymark.tellusim.com/leaderboard/ ) as seen here:
Vulkan boost was 1.74% better (8 FPS more)
OpenGL boost was 2.66% better (11.7 FPS more)
The Ubuntu gaming developers might be silent… but they are deadly with optimizations. So I will be testing a bunch of games again here https://youtube.com/@xtremelinux when 23.04 comes out. Gonna be fun.