What about running a chrooted nix install and using a vnc to connect to it? While web browsing and playing a background video? Just because you don’t use your ram doesn’t mean others don’t. And no, I don’t use all my ram, but a little overhead is nice.
Well, then by that logic, since desktop computing tasks don’t really use all that ram: we shouldn’t need more than 8GB in a desktop ever. Yes, my example was a tad extreme, vnc-ing into your own VM on your phone, but my point was rather phones are becoming capable and replacing traditional computers more and more. A more realistic example is when I was using Samsung Dex the other day I had 80ish chrome tabs open, a video chat, and a terminal ssh’d into my computer fixing it. I liked the overhead of ram I had above me. Was I even close to 12GB? No. But it gave me room if I wanted another background program or had to spin something up quickly without disrupting my flow or lagging out/crashing.