Factory resetting the phone should fix it (this will delete all your data so make backups if you want to keep some things!). I’m not 100% certain though

Keep in mind that this bug will most likely reappear someday, maybe even sooner than later. So it might be worthwhile to look into custom roms if you’re a liitle tech savy and/or willing to learn a little bit. This also is your only realistically achievable option if factory resetting doesn’t work

I had a similiar thing happening. Did some rough calculations and found out system was only using something like 40gb for real, rest was some kind of bug

Have since switched to Evolution X rom and I’m very glad I did

Kodi has some IPTV addons

It’s google, it’s okay when they do it /s

Owncast might fit your needs