I'd also like to have voice the opinion that to either remove the notifications or give us the option to disable them.
I think most, if not all, notifications should always come with a toggle to disable them.
In particular, I find the new contest notifications quite useless since they are pretty meaningless on the screen they are being delivered on.
To see any actual progress, you'd need to visit the contest page again regardless of what was shown because there is no indication of standing, how many points needed to surpass the player in front of you, etc.
I think @Veia had a great suggestion. At least these types of notifications are more worthwhile.
Right now, I don't see any benefit at all for the notifications as they exist today as they simply slow down the game.
A lot of the screens require too much clicking as is, and I've resorted to using the back/forward buttons on my mouse to skip them because waiting for them to finish are entirely not worth it (and I suspect others are also doing the same).