Anything GUI-related is just bloat, don't even bother with a tiling window manager, just remove that and your whole desktop and use Arch just in a terminal the way God intended

This is obviously the best

For windows: FancyWM (glazewm acts closer to i3 however it was unstable with many apps and crashed a lot)

For MacOS: Yabai (amethyst if you like stacked layout but I'm a bsp sort of human).

For Linux: kde plasma + bismuth (just wish it had bsp layout)

I would say i3/sway/hypr (hypr probably best out of the 3) however in my months of attempting standalone WMs like these and others I would always go back to my MacBook as everytime I used them i would find something up and each problem took me days to debug. Plasma+bismuth allowed me full time in Linux and MacBook now gathers dust.

My dream though would be plasma+hypr. I read about those who replaced kwin completly with i3 and also got every other benefit of plasma. I couldn't make it work though.