I think he means the whole “Not enough users to justify porting applications, users don’t use it because applications don’t support it” thing.
The problem is that logic has been dead for years. Users are here. The Steam Deck is wildly popular. Tim Sweeney is just a dumbass.
Yeah, I’ve put Ubuntu Touch on a Pixel 3a and had a pretty similar experience unfortunately. I see potential, but it’s just not usable yet (for me at least).