You use it outdoors? I'm typing this on one of the emoji keyboard laptops and it works so "well" that I'm not in a rush to give Apple more money for a portable...
Note that I bought the 2018 or 2019 model with extra isolation under the keys. That didn't help at all.
Yes, since the beginning of 2020 I’ve used the MacBook Pro in parks and botanical gardens where there are a lot of particles flying around (after an hour I usually had to wipe the screen to be able to see something).
The keyboard worked perfectly fine.
I haven’t had a chance to test the 2019 Intel MacBook too much, but the M1 2020 was heavily used outdoors. I believe the M1 2020 model was the first one to get the Magic Keyboard mechanism: https://support.apple.com/kb/SP824
Note that I bought the 2018 or 2019 model with extra isolation under the keys. That didn't help at all.