I just recently noticed that ProtonVPN is available on Flathub. I either missed this or never noticed. In any case this is great because for systems I have that don't use a Debian based OS it's now much easier to get Proton VPN installed. I tried it on my Pinebook pro which I use PostmarketOS on and the Flatpak version of Proton VPN worked great. Here's a link for those interested: https://flathub.org/apps/com.protonvpn.www