It would seem that solutions available in this modified OS will fix the problem with Godot not running under Lima drivers. Custom D.E.O.T. V1.0+/Clockwork OS v0.4 image - With Updated Kernel 5.3.6, Latest Lima Drivers, RA1.8.1, Mupen64+ and much more! (Current version: 191122)
I’m not sure however if it’s the latest mesa build or lima drivers (maybe both), but the script referenced in this thread post sets you up for latest mesa. (Link)
My test export project worked, starting up immediately and showing something around 100+ FPS (with one shader failing to compile) compared to 15 FPS through FBTurbo. Safe to say Godot might be finally viable to work with.