Dozer [0] doesn't require any special permissions. I guess this is needed by Bartender because it creates a little pop-out menu that shows the icons somewhere else?
Among many. Apple’s security model has a lot of ups and downs like this. I gather any app that needs access to anything on the screen outside of itself requires “screen recording” permission. I know all of the Remote Desktop apps, as well as color sampling functions in browsers, Adobe’s apps, and all of the designer tools with similar functionality require it.