I’m using google Wifi and have no issues with my max. Stays on 5 ghz and gets slightly better speeds than my x and iPad Pro
Lucky youMy Experience with XS Max: After reading your post I checked my speed and it was poor (65Mbps) Tips: 1. Restart phone 2. If you have the choice of 5Ghz network... choose it 3. Go to Wi-Fi settings, click on the blue Info circle, then click on "Forget This Network". 4. Then find your Network in the Wi-Fi settings, click on it and you will need to re-enter the password. This solved the problem for me, the speed was 217 Mbps on a recheck.
I noticed that WIFI is becoming slower and slower until you disconnect and connect again.
From that moment the wifi is fast but becomes slower and slower during the day until you repeat these steps again.
You guys updated to 12.0.1?