I understand you may be having issues with your iPhone Xs Max. I literally have no issue with my iPhone Xs Max. I'm on Verizon and my performance is great. Now if it was just me that might be an issue but everyone I know who has an iPhone Xs or Xs Max doesn't have any issue also. I started to compare it to my old iPhone 8 plus which is on Verizon still (It is now my sons), I have the same connectivity performance. I travel all over the U.S., sometime in the most obscure areas and I have never any issues with signal that I did not have with my iPhone 8 plus. So, it's hard for me to understand when all these individuals are having issues when they seem to be in the "major" minority.
Shhh. Don’t interrupt the “intel drools, Qualcomm rules” circle jerk.