I'm also interested. Every now and then, I try to find one.
The last time I think it was Fasto TV Lite from this list:
But IIRC it just would not go full screen (you need to buy the full version for that I think) and I soon uninstalled it.
And the last time I tried IPTVnator on Android, it couldn't handle a large playlist, like IPTV-org.
ATM I'm using a proprietary app, Televizo, or the website https://tv.garden/ .