GTK4.14: Which GSK renderer is safe to use in general?

Hello,

testing software on different OSes got issues with GTK4.14 GSK and some GL drivers, for example even with usual widgets it can look like on the attached pictures (demo displays itself correctly with gl and opengl GSK_RENDERER, and not with ngl and vulkan, and of course it always works with LIBGL_ALWAYS_SOFTWARE=1).


Can you please share info which GSK renderer is safe to use with GTK 4.14 in general?
Would there be some side effects if GSK_RENDERER=gl (or opengl) is put in apps’ env by default?