It really bears repeating and pointing out that a lot of the really awesome things about i3 "just works" in a way that Gnome has lost many years ago.

Considering its 'rough-hack-a-text-config.file' roots to make changes I really am impressed with it. I've used i3 for many years, (I recently moved to sway but I'm going to move back) and I am so impressed with how it gets out of my way.

I hadn't heard of sway, it looks interesting. But, you are switching away from it, so I guess not? I'm a little bit stuck, but it looks like sway has "gaps" support, in that my new monitor has a bug where the very left and right edges have a parallax issue with the backlight: so you can't read the left or right ~8 pixels of the screen. I'm using an undocumented feature of I3 to work around it.

Don't want to change to a different monitor because otherwise I love this "cheap" 4K 42" panel. I had gone around and around about a new monitor, and don't want to open that process up again. So I'm using a kludge.

I have one dislike of a 'Feature'; window-resizing, and one bug (related to window-resizing).

Using keyboard+mouse: To resize you bring the mouse to the vertical or horizontal frame that you want to adjust, hold down the meta key (Win in my case), and right-click+move to adjust it. In i3: you only adjust that single frame. In Sway: you adjust the whole vertical & horizontal window size. This effects all other 'attached/touching' windows and unintentionally screws up some formatting for me.

Like I said, 'feature'.

I am using this on a cheap 42" 4k AOC monitor. I get 4k@60Hz.