“does more” means more functional, I think I explained that up above. I think you have again sort of glossed over touchscreen functionality and the ability to flip your screen around into tablet mode. A laptop is a portable computer, touchscreen and screen flipping allow for the Device to be even more portable and functional for the user who had decided to purchase a laptop as opposed to a desktop.
This is all very important stuff to be aware of as for a lot of industries and use cases can’t make use of a laptops form factor as it is just too cumbersome. This is why they are so popular in stem and creative fields, not to mention healthcare, education, and service industries. This may not be as large of a factor for someone working in graphic design or software development but at the same time it really makes just as much sense as a typical laptop.
I could go on about the functional benefits of having a touchscreen and having a tablet but really that list is just so massive and everyone who uses one of aware of that which is why the market is shifting over that direction so quickly. Helped in part by the fact that they are popular purchases for companies to buy for their employees and anyone who uses a 2in1 at work is typically going to end up buying one for themselves as it’s really not a great experience going back to how things used to be.
Now you mention running AAA game titles and I’m finding that pretty hard to track down titles getting mentioned unless they are games of some serious age or you are trying to qualify games like baldurs gate 3 and the Sims 4 as AAA titles which is rather disingenuous. As far as I see people talking about with Mac gaming they tend to suggest people use Xbox cloud or other game streaming services. Obviously you get a much wider selection of games than the Mac available library when going that route especially with something like a MacBook Air where storage comes at a premium and typical AAA titles are coming in above the 100gb mark now. This would make things even more difficult for someone doing video editing as well especially if they are working in 4k resolution. You could go the route of using an external drive as well but that sorta saps the portability when you have all the extras hanging off your computer at which point if I was serious about doing either of those things I would be using a desktop anyhow to gain the benefits seen there. As for where our Chromebook stands in this situation, well, they can stream cloud service games and even stream games locally from a desktop gaming PC (as I commonly do) just the same as a MacBook Air can.
(Btw I got curious and tried using blender on one of the Chromebooks and I’ll be damned if it didn’t run surprisingly well, loaded a bunch of demo projects and it was pretty great. I also discovered that using touchscreen with blender was pretty awesome, made sculpting super easy as well as animating and modeling, camera controls are actually really intuitive, ran great in Evee and workbench, cycles was a little sluggish , but with evee in viewport render mode it was actually pretty smooth, definitely workable, material preview and solid were both pretty great as well)