So I solved my issue. The problem was that I wasn't in the terminal session which was easily fixed by typing 'wsl' and getting into the Linux environment.
After that I had problems with getting 'sail up' working. This thread on github helped me solve this issue.
https://github.com/laravel/sail/issues/190
Even though 'vendor/bin/sail up' can initially fail subsequent runs start up without issue.
The issue can be consistently reproduced by running:
vendor/bin/sail up --build