I wouldn't be surprised if it didn't. The number of times I've heard the notification sound, gotten a toast while in the middle of something, and then been unable to find what the hell that notification was for, because some other device I'm logged in on has helpfully marked it read.

Then begins the hunt through chats, meeting chats, group chats, channel chats and the notification pane (which doesn't show every type of notification!?) to find what it was.

Absolutely maddening.