It does seem to appear from reading these forums and others that the pixel 2 XL has more than it's share of problems.....
Don't make the mistake of projecting problems reported here as an indication of the quality of a phone. People are far more likely to go searching online for a problem (and finding their way here) or complaining about a problem on a forum. They are looking for answers.
I always put it this way.. if an alien comes to Earth and decides to research is by going into a hospital, they'll immediately assume that everyone is hurt, sick, on the brink of death. It's called selection bias.
The 2XL is the more popular model, so there will be more owners, and more owners with problems. More problems, more problem posts. Go on any phone board here and there will be a disproportionate number of people with issues looking for help.
But there are a ton of 2XL owners who haven't had issues, and absolutely love the phone (like yours truly). I've opened phones from a bunch of different manufacturers, and the ones I've owned from Google (pixel and Nexus) have had, by a massive margin, fewer issues. Me and my family have owned a total of 8, and I have yet to have a major issue with them. Phones I've had from LG and Samsung, on the other hand, have been rather aggravating to deal with... So much so that I've gone all Pixel across the family lineup.
But I also won't make the mistake of assuming everyone's experience matches mine. People having issues are not making stuff up, and just because I haven't had a problem, doesn't mean those problems do not exist. No phone is 100% perfect, all will have a set of owners fed up with them and looking to go elsewhere. We have many former iPhone owners here because they were sick of dealing with them, and there are people over in imore who got sick of Android... It happens.