I’d recommend using something like Niri instead of mutter for the compositor as Niri is:

• Extremely customizable
• Meant to be used alone (unlike mutter which is for Gnome)
• Supportive of Wayland portals better than any compositor I’ve tried
• Very modern
• Pretty stable
• Making use of scrolling window management which is, imo, superior to anything else
  • You could force all windows to be floating if you want that traditional method tho

I’d also recommend using DankMaterialShell and simply providing a theming to get the appeal you want. It works well with Niri and provides all the system tools you need for an OS like bluetooth and audio management, application lookup, etc. It’s sort of a stripped down Gnome-shell for standalone compositors but way more customizable.

Then everything else can just be installed WINE apps.

Absolutely unusable for one big reason: still no good tiling options in KDE. They got me hopeful with their tiled area system but then dropped the ball on execution. An OS without tiling is functionally unusable for real work. There aren’t even any good KWin scripts for it. At least Windows has stuff like FancyWM. Will not be using any time soon. GNOME, with the ability to install Pop Shell 2, is by far the superior DE, and it’s not even close, and I’ll stick to that for most things and a WM/compositor (in this case Hyprland) on my main machine. KDE is and will continue to be trash until they can add true tiling support. Might as well some 1980s looking WM like OpenBox. That’s what KDE is. Old and unusable. Nothing else they “improve” matters since the core of operations doesn’t function.