This is the reaon I use XMonad, and I hate how this one design choice that only one window manager has gotten right is what locks me into X11. If anyone ever learns of a non-X11 window manager that handles workspaces on multiple monitors the XMonad way, contact me!
See https://github.com/Kintaro/wtftw It handles screens the exact same way Xmonad does, because it was modeled after Xmonad. The config is entirely done in Rust, so it allows for a lot of hackability. On reload, the config gets compiled to a dynamic library and the WM restarts itself, passing the current window IDs to itself to "reload".
But I was meaning to pick up a new project in 2026 for myself. So maybe a CL based Wayland WM with an Xmonad style?