There's a lot of good new stuff in windows 10, like an updated scheduler, WSL, etc. But yeah they need to ditch stuff like the "new" settings app and forcing edge down your throat.
I love WSL but what does it do that cygwin didn't? I guess let you use the distro directly including package manager. But a VM can do that. And WSL2 is just Hyper-V virtualization, that's all it is.
So it's nothing really new here, if you want this on Windows 7, then just install Virtualbox/Hyper-V/whatever, create a Ubuntu VM (with shared folders), configure it to launch at Windows startup, and create a launcher shortcut to SSH into it.