That's very interesting. But my mac is already barely usable as it is. It is very sluggish (even with 8gb RAM) and the battery is shot. It's fine as an offiline text editor, but not much else. Another reason I haven't replaced it is that my iPad covers most of my mobile needs (and Pleco!) and I also have a linux box for more computery stuff.You could still install Monterey on a 2013 MacBook Air using this non in-memory, non-permanent hack
I'll upgrade my gear in the summer, so I'll see what will be available by then. If my old mac's still kicking by then I'll probably just install linux on it.