Meh, it looks pretty in screenshots but it's a huge waste of screen space in the end.

I suppose 'power-users' can put up with 'small-button' GUIs but I do think a general purpose GUI needs to be easy to use for people who aren't used to controlling mice and keyboards all the time.

Being able to use mouse and keyboard makes you a power user in 2025?

No

Then what was your preceding comment supposed to mean?

My point is that small button GUIs should be a choice for the people who want to put up with them, not something that's pushed for universal use.

Those users won't use Devuan or Gnome but Android/iOS.

They may not personally choose Devuan or GNOME but they might end up using them because an administrator chose them.