That's the funny part, it's not even in areas that are all that rural. Though in rural areas I'm seeing no real change so far, seems to catch the fringe of the network just the same. The issue is mainly where the phone doesn't have concrete location. The reason I haven't noticed much issue with my XS until recently was because I normally stay in one spot during use of my device but the past 4 days I have been all over in the place. Normally I use other devices to do tasks and just leave my main phone on the desk. I noticed that it's like it takes forever to lock itself in and establish a pathway for connection or something when trying to use it at well covered areas that I'm not stationary in. At my office it's generally fine. Aside from doing actual speed tests it's not noticeable (speed test is about 30% on average less than any other device) because the connection is persistent. This all could be in my head but that's just what I notice. At home and at work the phone is generally fine, but just going to a gas station 2 miles away from home and then trying to find the hours of a store caused major changes in the connection despite the signal graphic not changing anything. Even running trying to run a speed test just hung indefinitely and wouldn't even start the test and no other devices on the same network with me had this issue.
There is no rhyme or reason IMO. I am in NYC which is obviously a major city with coverage everywhere, however am experiencing AWFUL LTE/WiFi connectivity. It's definitely not restricted to rural areas as I've seen others on this thread believe.
I have never experienced issues in all the times having a mobile phone in NYC, which has consisted of only iPhones since the original launched. It is definitely a major concern for me as this weekend I wasn't able to use waze on my phone during a short trip upstate. Also couldn't successfully make phone calls with the other person cutting in and out and saying they couldn't hear me. All the while my wife's iPhone 6S had ZERO issues right next to me. We had to rely on her phone during our quick trip.
I know the nuclear option would be just to refund my phone and either buy an 8 or something else. Unfortunately I don't have a backup phone and am too heavily invested in the Apple ecosystem with my entire family being on iOS devices. I don't want to have to buy an older phone, but it might be my option if Apple isn't going to address this anytime soon. If/When the Apple support engineer contacts me again, I am going to SPECIFICALLY ask if they can offer me a loaner phone until the issue is resolved at which point I would want a new XS Max. Who knows if they would be willing to do anything for me.
Sorry for all these long-winded posts. I am just really frustrated.