[Dylan16807]

I've never hit a system call I wanted but wasn't available on WSL. In fact the couple times I've been disappointed at the lack of a system call it was when I was booting linux.

No containerization: Agreed, this is a significant limit.

Background services work just fine, I don't know what you're getting at. I have cron and stuff going.

What's improper about the init system? I start services, I stop services, it seems fine.

No kernel modules: I feel like this is pretty niche.