> System Preferences on a Mac (specifically the Display ("Displays"?) pane) also gives you some choices that make everything bigger or smaller, but if you don't choose the native resolution of the display, everything is very blurry -- which does not happen on a pure-GTK3 Linux install.
It absolutely does. You may not see it, but Wayland and Gtk as of 2022 are not able to do technically anything else here than scaling. This is a known issue, and the reason why I linked that Wayland fractional scaling thing - it is not possible on regular desktop Linux (it is on Android/ChromeOS) to get adequately sized, rendered for size output on your 27" 4K screen or 13" 1080p screen.
> System Preferences on a Mac (specifically the Display ("Displays"?) pane) also gives you some choices that make everything bigger or smaller, but if you don't choose the native resolution of the display, everything is very blurry -- which does not happen on a pure-GTK3 Linux install.
It absolutely does. You may not see it, but Wayland and Gtk as of 2022 are not able to do technically anything else here than scaling. This is a known issue, and the reason why I linked that Wayland fractional scaling thing - it is not possible on regular desktop Linux (it is on Android/ChromeOS) to get adequately sized, rendered for size output on your 27" 4K screen or 13" 1080p screen.