Sorry but not sorry, it's not easier to run than on linux. It requires the Windows store to work, and to use Hyper-V (which breaks VMware workstation, among other things).
It's in a better package, to be sure, but it's not "easier to run multiple OS on the same computer". It's easier to use multiple OSes (no SSH, GUI forwarding, etc), as long as all those OSes are Linux flavors supported by WSL.
Want FreeBSD or Windows? Nope!