Oh, do you mind elaborating on this? I’m looking for a way to organise my PC with similar approach. I thought of minimal Arch Linux installation as a host, and macOS (or Windows for very special cases) on top, when I need those GUI apps that aren’t present in Linux. I see no need to keep Linux apps in a VM.

Proxmox with gpu pass through can do windows, macos and the various linux platforms with very little performance loss.

postmarketOS and waydroid are almost there, though I still went back to lineage. No answers for iOS.