UC Vanguard and Freestar Rangers questlines question - eviltoast

I’ve been getting diverted on sidequests, capturing ships, and exploration too much.

But I really don’t want to do the Constellation questline yet, I’ve seen some spoilers and I’m not ready for that . I’m thinking of concentrating on the UC Vanguard or Freestar Collective questlines. Can I complete those without interfering with the Constellation questline?