I would guess that any platform-exclusive game is going to have some level of that, just because you've got fans of Platform A and fans of Platform B. And Starfield was purchased by Microsoft specifically to have an X-Box (well, and PC) exclusive, so...
Go back to the 1980s, and it was "Mario sucks" or "Sonic sucks".
I play games almost entirely on the PC, so the Starfield acquisition (as well as the other recent acquisitions by Microsoft or Sony or whoever that have been driving the antitrust concerns) haven't really been on my radar, but if I had a popular game coming out on my platform and then someone paid to ensure that I didn't get it, I'd be kind of irked.
I did use a Mac, many years back, and I remember being annoyed when Bungie -- then a major game developer for the Macintosh, in an era when the Mac wasn't getting a lot of games -- was purchased by Microsoft in 2000. Halo did come out for the Mac, but Halo 2 didn't, and I imagine that a lot of people who were on the Mac then were probably pretty unhappy about that.
It's apparently coming out shortly (like, this month or next). But, more to the point, the delay apparently wasn't because a platform vendor purchased it to be an exclusive, but because the dev team hit some kind of technical problems with the port. That is, it's not in the group of "Mario and Sonic" exclusives used to sell a platform, and Microsoft's acquisition was to make Starfield one of these.
EDIT: Split-screen on the XBox Series S is apparently where the problem is:
Larian has been struggling to get Baldur's Gate 3's split-screen co-op feature running smoothly on the Xbox Series S. Despite the feature working as intended on Xbox Series X, Microsoft policy demands that Xbox Series X versions of their games cannot have any features that Xbox Series S editions lack. This means that canning the feature on Series S simply isn't an option for Larian.