Many things changes after vox sell his Amiga X1000.
Warp3D for Radeon SI cards was made.
Also OpenGL with shaders.
There is not much software for WarpOs.
For WarpOs You can use ReWarp. Heretic II works.
Vampire will be nice but is too slow, has not MMU and FPU.
Amiga OS 4 at least support classic software made for FPU.
Many classic soiftware works, after some tweaks.