How has tethering changed in iOS 13?
The UI in the Settings app is different, but I'm finding my Kindle Fire tablet can no longer detect an Internet connection when tethered to any of three different iPhones I've tested with - so I suspect something has changed and want to work on how to mitigate it.
I'm on Sprint if that matters. We regularly used Tethering before iOS 13 successfully with a variety of devices.