I don't do that and that seems pretty extreme to me - since most mobile hotspots are going to throttle you after a certain limit (even if they purportedly offer unlimited data). However, I understand the desire.

TV Shows and Movies

If you pay for streaming services, you might want to consider "sailing the high seas" (torrenting). Cancelling streaming services, pirating content, and then using the savings to pay for Spectrum might provide a better overall experience. If it's not cost effective to do that, you should still consider torrenting at a public coffee shop or something to that effect (with a VPN). You can use Jellyfin to host your torrented content.

Gaming

A cheap Raspberry Pi and some peripheral controllers can be used to host a lot of fun retro games which you can play locally at home. I'm assuming modern games are too slow to download over a hotspot.

Pictures

You can host Immich locally and backup photos and videos on your phone over your local intranet. It was super easy for me to setup.