Answering my own question: To rule out networking issues, I installed factorio on another PC and tried to connect, and here it showed me that I had two mods installed. Strange because I specifically downloaded via steam so it's a new install (my previous install was without steam). But mods somehow ...

I have a Nintendo switch lite on build 1.1.100 (build 61920 arm64-ns) and my pc is running via steam build 1.1.100 (build 61920 win64)

Are these two compatible? Can anyone guide me on how to run Factorio on Steam in console mode? I don't see it in a dropdown anywhere. Am I doing something wrong?