[pmlnr]

This.

Never thought that once we had Skype we'll still not solve video calls cross-platform on every bloody device by 2025, including, but not limited to, linux, TVs, Android boxes, Chromecast with Google TV, and so on.

I really want to get off Whatsapp, but everyone simply refuses to do so out of simplicity, lazyness, and ignorance.

Signal is the easy and obvious alternative.

XMPP/Matrix are different paths that also work (and both rely on TURN/STUN, like everything), but that requires someone running those servers in your vicinity of friends.