When I started using a 27 inch 4k monitor, the view cube was the one thing I noticed that didn't scale proportionally. The icons on the toolbar scaled & a bit blurry but that doesn't really bother me. I'm using HighDPIScaling in Preferences/Preview Features.
Hay una forma de hacerlo aparecer,,,, es ingresar a archivo y al final de ese cuadro de opciones esta la opción VISTA y alli seleccionas ViewCube y volverá a aparecer.
Exact same thing happened to me in 2024. This problem still has no solution sadly. I don't understand why the viewcube's sizing isn't adjustable.
try a 32.5" 4k, the thing is so small i can barely click it sometimes. plus I've got another monitor and the view cube is pressed against the side, so sometimes when I'm dragging it my cursor goes to the other monitor and it spazzes out 😞
if there's a way to at least move it i'd love to know :3