Maya's had radial menus as a major chunk of its UI for ages, and there are people who use them as a major chunk of their mouse-and-keyboard interaction with it. Blender's got 'em too.
Wacom's tablet drivers let you build radial menus for your programs. I've never bothered as I'm a "five thousand keyboard shortcuts" kind of artist but there are artists who love 'em.
Speaking as an aspiring solo gamedev: these extra menus in programs like Blender are super important.
Sure, you can map extra keybinds, but convenient keybinds are actually a scarce resource if you're essentially the "full stack" of the art pipeline (from sculpting, modeling, retopology, texture painting, to animating). This isn't even including keybinds for any custom tooling.
One thing I really appreciate about Blender specifically is that you can search through all the available operations with F3. This offers a nice trade-off between muscle memory, keybind consumption, and not needing to use the mouse.
Wacom's tablet drivers let you build radial menus for your programs. I've never bothered as I'm a "five thousand keyboard shortcuts" kind of artist but there are artists who love 'em.