You don't ever have to deal with the bugs if you don't want to. There's an entire second war going on with the Automatons, and the devs have clearly left themselves room for at least 2 more factions. I guess the first game had another faction of aliens that isn't in the game yet.

But I get it if the bugs are enough to put you off getting it, I had to essentially solo part of Elden Ring in co-op for a buddy because the hands in that game trigger his arachnophobia.