Check out openconnect to connect to anyconnect VPNs

I ran it as my primary distro on my main machine for a while way back when. I don’t recommend that.

What I do recommend is going though the entire process even if it’s just in a VM. It’s incredibly educational and will teach you a ton about Linux and OS construction in general. I used to recommend it to everyone I was teaching linux/ Unix too and all the students who actually went through it and completed it now have successful IT careers. 100% an incredibly valuable teaching resource, you will look at all OS’s with new eyes after you’ve built one bit by bit from source by hand.

I prefer FreeLager myself.