Mine has this too. I haven't encountered a perfect keyboard MBP keyboard but mine is pretty close. Some keys rattle a little, some not at all. The only key that rattles badly is the enter key and that's only if you hit it in the top corners. it still registers the keypress and everything and I don't want to wait months to get another one that might have an even worse keyboard. It's annoying, but totally normal.
Mine has this too. I haven't encountered a perfect keyboard MBP keyboard but mine is pretty close. Some keys rattle a little, some not at all. The only key that rattles badly is the enter key and that's only if you hit it in the top corners. it still registers the keypress and everything and I don't want to wait months to get another one that might have an even worse keyboard. It's annoying, but totally normal.
As far as I have read, this is a wide spread issue with most of the recent 2021 macbook pro and even the once i checked that are on display at the apple store. Some have more creaking issues than the others but rarely I have seen a device that is fully quiet. In my case i have a Japanese keyboard layout which means the Enter key is especially large and I noticed that the underneath key registering switch is on the left side and is not centered. Hence the right edge sinks a bit more than the left when pressed and also the bottom right corner has the most creaking noise.