10 years ago I had just moved into a new place and I didn't have a router, so I used an old phone for a few weeks and it was actually reliable. When I suddenly needed to work from home for an extended period a couple of weeks ago, I had to get an internet connection separate from my home internet. So I used an old iPhone SE2 and added an eSIM to it. The iPhone hotspot disappears several times a day for no reason. And when I go to the settings page to check, it starts working again. Also I can't disable the Wi-Fi while the hotspot is on, so it randomly connected me to my home internet multiple times until I made it forget my home network. Who designed that??