Keyboard key maintenance question

AppleSiggy wrote:

This is a cosmetic question I figured I would throw out to the fine folks on here to see if I could get any solid advice. I've had my MacBook Pro since December and over time, I have noticed the surface of the left shift key displaying a sort of sheen on it's surface that is not present on any other key. I do use this key often when using one of my apps, but I had done the same with my previous 2015 MacBook Pro and never once did it develop this sheen to it over time. I've tried several ideas such as a 50/50 water + Isopropyl alcohol to it with a soft cloth to no avail. Please see the included photo for reference.

https://discussions.apple.com/content/attachment/25909751-4e60-4529-8bdd-42bfff0b6d6f

Does anyone else have this issue or have any other ideas to remove the sheen? Thanks!

Washing your hands more frequently may help...

How to clean the keyboard of your MacBook or MacBook Pro

I see nothing on the screenshot.

This seems like normal use and I see no issue.

Materials are always subject to change— I do not hink you can compare a 2021 to a 2015 that is a 6 year difference(?)