Sway for a little over a year now (on an AMD gpu). I switched for mixed refresh rate support and VRR. VRR requires a workaround in sway but works better in others, like hyprland, however I like sway's tiling better so I stuck with it. Also the absence of tearing in anything, ever, is worth it to me. I have two vertical displays and it was really hit or miss on X11. Sometimes GPU acceleration would just decide not to work in browsers and I'd have to restart them because smooth scrolling would turn into a stop-motion film. That's never happened since switching to sway.
EDIT: I used i3 before