I can't get myself to do the battery-built-in-to-charger thing. I've always treated portable power banks as semi-disposable since they do eventually get worse and fail, and it feels icky to me to tie ~immortal charging gear to something that will die.
I did have the same feeling about flashlights for camping/hiking with lithium batteries, though, until someone walked me through just how much better they are than lugging around AAs.
The steam deck forced me to finally pay attention to the usb-c ecosystem and I can only imagine how some non tech people might get with mysteriously bad or slow charging.
I find it crazy that Apple went back to magsafe in the m4 (maybe earlier but that's the machine I have at work). But at least you can still charge over usb-c.