Additional software on WSL is available via a variety of means
A good starting point on the Red Hat CLSE is:
dnf search packagename
That will search any of the currently enabled repositories.
What if I can't find what I need?
You can also enable the EPEL (extra packages for enterprise linux) repository:
Information on how to do that is here:
https://docs.fedoraproject.org/en-US/epel/getting-started/#_rhel_9
And a good starting point on the Ubuntu image is:
apt search packagename
or
snap search packagename