My home network equipment is currently shut down, and my house isn't in range of the secure Xfinity Mobile WiFi hotspots, so I am reduced to using the unsecured xfinitywifi hotspots.
Since I have my travel/portable network rig (travel wifi router, Raspberry Pi running Pi-hole, and powerbank), which I usually use on secured networks, I finally sat down and figured out how to configure my free Proton VPN account on my travel router.
It seems to be working.