Shit, I have all of the above, in multiples.

I have kind of abandoned keeping a gaming PC up to date because I get sick of the bullshit. But the one I have currently isn't too far behind, hardware wise.

But I use it for piracy, image management (including editing), video editing, etc. The stuff that punks out other devices.

I have a dedicated media PC that is hooked up to the TV and stereo, but is isolated from anything else. That's what I still run Windows 7 on because musicbee on Linux isn't ready for prime time.

Then there's my wife's old computer that's hooked up to my kid's tvt, not that it ever gets used. But it's functional, so until it dies, that's what it does.

My laptop is exclusively for my writing. Dual boot with win 10/mint Linux. The win10 exists only for a specific piece of software that makes publishing to amazon easier. No games, but I do some media playback with it when I have to travel.

Phones suck at media management, word processing, and pretty much everything else tbh. Too many lobbyists limitations, too much crap for proper multitasking, no good apps for long form writing. But I do use them as music players at home via headphones.

Tablets are for portable video consumption, crappy mobile games, and reading. Some short form writing is possible on a decent tablet.

I don't see phones taking over much of what I use a laptop for, ever. And the screen size of even the biggest phones would suck for media management, even if it was realistic to store large amounts on one.