I'm not sure it's exactly the same, because WtR is generally a concerted, collective overt thing and a way to exert industrial action without a strike (which is

I'm not sure it's exactly the same, because WtR is generally a concerted, collective overt thing and a way to exert industrial action without a strike (which isn't always legal, possible or desirable). The point is to point out how much all the staff are doing "over and above" and aren't being compensated or recognised for. "Quiet quitting" seems more like an individual doing the same but without an intention to exert pressure on the employer, but just do the minimum (or do precisely what they're paid to, depending on perspective) and clock off. It's not even the classic, decidedly un-quiet "fuck you, pay me". Certainly, as said a million times, it's not a new phenomenon. The shaming around it appears to be fairly new.