My 32/16 bit integer example was just that: an example where one was half the size as the other. Take 128/64 or whatever, doesn't matter as it doesn't work like that (which was my point).

Software written in non-GC based languages runs on other operating systems as well.

I used MS Teams as an example, but it's hardly an exception when it comes to Electron/WebView/CEF apps. You have Spotify running, maybe a password manager (even 1Password uses Electron for its GUI nowadays), and don't forget about all the web apps you have open in the browser, like maybe GMail and some Google Docs spreadsheet.

And sure, Macs have fast flash memory, but so do PC notebooks in this price range. A 990 Pro also doesn't set you back $400 per terabyte, but more like ... $80, if even that. A fifth. Not sure where you got that they are so fast it's hard to measure.

There are tests out there that clearly show why 8 GB are a complete joke on a $1600 machine.

So no, I still don't buy it. I use a desktop Windows/Linux machine and a MacBook Pro (M1 Max) and the same workflows tend to use very similar amounts of memory (what a surprise /s).