I think PrusaSlicer does this in a reasonable way. (Context: this is software for preparing files for 3D printers.)

It has three modes: Simple, Advanced, Expert. They are all the same UI design, all it does is hide some less common settings to not overwhelm users. Each level is also associated with a colour, and next to each setting is a small dot with that colour: this allows you to quickly scan for the more common settings even if you showed all of them at Expert. At Expert there are easily over a thousand different settings organised into a 2-level hierarchy.

Docs on this feature: https://help.prusa3d.com/article/simple-advanced-expert-mode...

I wrote a blog post that has some screenshots from the settings pages (5th image for example): https://vorpal.se/posts/2025/jun/23/3d-printing-with-unconve...