On the go video / photo editing is AMAZING on my iPad! More power speeds up some the effects / transition editing. Batch processing, all with a device that has great battery life and is smaller than a magazine. For super heavy stuff, sure, use my Mac, but when I travel and want to be productive on the go, the iPad is awesome!
But that's the thing, most "gamers" aren't the ones that games that normally on Steam are targeting. Mobile Gaming is almost double the size of Console Gaming by revenue. Some people just like having a huge screen for their games.
I do wonder about this too… I'm cutting 4K video and doing SwiftUI development on an M1 MacBook Air. My current plan is to upgrade next year, but only if they upgrade the screen. An M4 seems like a dramatic over-spec for a tablet.
Yeah, maybe I'm too much of a "real gamer" but my iPad sits unused. The quality (and greediness!) of games on the iOS App Store is often worse than the direct-download console slop.