Not sure on that... Amazon prime is pretty atrocious. Similar for Netflix anymore. And the CBS/Paramount TV app won't work right at all with my pihole blocking their tracking service. WTH.
It wouldn't take much for Rumble to do better, but it seems like the TV app experience is such a minimal priority for them.
Max was decent and so was Discovery... Since the merger both are worse and they aren't even merged. Just worse than before.