Me and some of my friends from college wanted to reconnect and we wound up wanting to play since online games too, but two of us only had Macs (which don't have many supported games) and one of us didn't have any console.
This meant that our options were limited, but we came up with a couple of solid (in my opinion) options:
- Play an online MOBA that supports phones. We wound up picking Pokemon Unite. It's far from the best game I've played, but we can chat on Discord while we play, and it's fun enough
- Play a game on Tabletop Simulator. It supports Mac and isn't graphically intensive. We like playing Uno with it, but my understanding is it can basically be used for almost any game.