

There’s a guide for switching to Wireguard. Yams also includes a command:
yams check-vpn
that tells you if the VPN is working.
Not sure if that directly answers your question but there are a lot of step-by-step guides on the site and the author has also answered a lot of user questions on the message board.

I like Cosmic because it’s a nice middle ground between something like sway and the more mature DEs (Gnome/KDE). The tiling experience is phenomenal but you can still use floating if you prefer. I have it on both my main machine (Gentoo) and my secondary (Fedora).