I think this is a relatively niche product. Most people aren’t using so many apps and extensions that their menu bar is getting crowded with stuff.
I want to see almost none. For all of Apple’s insistence on design and clean, the menu bar and those hideous icons always there was the worst one ever.
I’ve been a Bartender user for over 10 years (I believe 12) and I’m now really fucking sad.
This says more about app devs than it does about users.
If you are visually impaired, you also likely have greatly reduced space for those icons, especially when undocked. (This issue plagues me personally.) In that case, this is not merely a clutter issue: app icons will simply be truncated from the menu bar, and in some cases that may mean that some functionality is just totally inaccessible to you.
For me, I was already paying for “clean my Mac” and fantastical which both cost the same or more than a SetApp subscription which includes dozens of additional apps.