Given the rapid development and maturity of virtualization, container, sandboxing, and emulation technology: to me it seems rather silly that it's not yet trivi

Given the rapid development and maturity of virtualization, container, sandboxing, and emulation technology: to me it seems rather silly that it's not yet trivial to run macos and windows apps (and anything else one would want) transparently, side by side on the same machine. I'm not normally a microsoft fan, but their direction with WSL2/WSLg/WSA feels very interesting...