Not the same thing though. Windows Terminal is a terminal emulator. Rsh is a shell. Assuming rsh runs fine on windows, one could make another profile in Windows Terminal that starts in rsh.
WSL and you just can completely avoid Windows Terminal if you work on Windows but not with Windows. I.e I do devops, linux development in my Windows Box running an openSUSE box in WSL. It integrates pretty well with visual code for instance.
Sadly, to use WSL effectively, you need to configure high enough Disk and Memory, the issue is WSL doesn't know how to clean up deleted volume.
I'm using it since WSL1 and never had problem with that...