If you are getting the game on steam keep in mind the last update broke basically all the old mods, and it was late enough after development that they didn't really get updates. If you want to mod the game or avoid it pestering you about logging into epic use the older version you can apply in the properties of the game in steam.

Also know that if you want to play coop ymmv, its a fun game but crashes and disconnects are common, and your progress with your friend might desync if you disconnect, so you may need to juggle who is hosting.

TLDR: good game, buggy coop, mod scene is sort of complicated due to late stage patches to implement EGS stuff.