That was what I was expecting, without trying.

Maybe it’s just the right Decky add-on away? I have used add-ons for enabling VPNs so this should be possible, if not done already.

1. Can you connect to the same WiFi? If not, it’s gonna be impractical to connect without a cable. The Steam Deck has pretty fast WiFi, so if it lags i would bet your router is the bottleneck.
2. Civilization is mostly strategy, it’s turn based so there’s plenty of time to talk strategy, it takes some time to get a hang of the game but the beginning isn’t too rough.