Even though I told you don’t ask me why… you’re asking me why. But I’m a good donut so I went back:
They dont have to press BOTH keys to press space, they just didnt have a spacebar key that is the correct size to fit, so they put those 2 random keys on instead until they get a permanent keycap set that all fits.
I know this is a meme, but if you want to get rid of them:
Click your picture on the top right > Settings > Notifications > Email > turn off “Missed activity emails”