You may want to check with your carrier if hotspotting is allowed/supported. Some carriers don't allow it. I use my iPhone hotspot all the time with few issues. I'm usually using eSIMs from the Airalo app because I travel a lot. I do find if I let it my computer idle for awhile, the hotspot will automatically disconnect. It's a bit annoying, but I assume it's by design to prevent wasting hotspot data. I haven't looked into it.
