Update on my case. Got an email from Apple telling me that this wasn't covered by warranty because of third-party parts inside the phone.
This is the dumbest thing I've ever heard.
A senior apple care rep are going to take my case abd investigate.
I completely switched phones with my wife and her known good iPhone X’s max that has never had an issue. (Even when I would use it).
We backed up our phones to iTunes. Switched sims and restored them accordingly. Now the phone that was mine is giving her zero trouble and hers that was giving her no trouble is now giving me the same problems I had before with mine ( and the 2 I had exchanged).
At this point I don’t believe it is a hardware issue at all but possibly something software.
I am going to put her phone back as hers and start mine as a brand new iPhone with the newest iOS beta and install apps only as necessary to see if that helps....