I’ve always had the idea that ships that were focused on on species had certain accommodations that other species would find too annoying or dangerous to live on with service. Vulcan ships are probably warmer than humans would like, Andorrans would probably die.
I always forget the name of their species, but the people who require a breather to pump in fresh non-Oxygen rich, I assume that if they had any ships, their life support would be exclusively their air, with those neck devices to help pump when visiting other plants and ships.
It would make more sense why Vulcan, an original member of the Federation, still has seemingly dozens if not hundreds of ships with their own design. I assume Andorians and Tellarite do too, but Star Trek forgets about them often.