@ae9c8437 > in 4 those problems are fixed.

As I know - no it is not fixed - every mesh still compile own shaders on first view on camera.

Only single difference in Godot 4 - shaders are in SPIR-V format so its about 5-10x times faster compiling, so maybe you have "fast CPU" and not noticing that it still lag, but for complex large shaders - there still lags and you do need some short loading.