Earlier quoted context omitted.
I think you're probably right, but my experience (Sway on Arch) has been nothing other than pretty excellent. It supports fractional scaling and different scales for different attached screens.. You have to tell the system you want it (`swaymsg 'output scale 1.5'`) but it works.
Just checked out Sway's intro video, this looks promising! Would you mind to elaborate if Sway is ready for being a daily driver + how is multi-monitor support (all monitors same dpi and also with different dpi levels).
You still need Xwayland installed for some stuff though. Most tools have adequate wayland replacements.