[llama9000]

I've never had the misfortune of having so many file sharings directed at my gmail, but if it happens to me this is what I'd do:

1) Create a filter to archive all file sharing messages + send to spam folder. You will have to check spam when you're expecting a file share later on though.

2) Turn off Gmail/GDrive notifications on your phone. I'd habitually check my mail regularly anyway. Someone wants me urgently could have a dozen other ways to ping me.