GPU VRAM is so scarce and precious.

That really depends. I have plenty of times when my GPU’s memory is sitting there mostly unused, because I need less than a gig for my desktop, but I have 16 gigs of it for gaming. Those times also correlate with when I really want more general RAM because I’m building some large rust projects with LTO. So this is a great way to put that extra hardware to use. I can always turn off that swap later when I want to play a game.