I am using this sudden influx of newness to post more as well. Frankly I have nothing but positive interactions so far. I get way more interaction in the fediverse than I ever did on any other platform. All that to say, that I just started responding to random people's posts. Everyone has been friendly.
Gotta mention FTL: Faster Than Light. Not a 6dof game, but great fun commanding your crew and navigating some fun encounters.