Recent issue; only started happening the last few days. Whenever I get an activity popup (friend coming on/offline, game finishes downloading, whatever) it appears nearish the middle of the screen rather than in the bottom corner. Possibly of note is that I’m using a 1440p monitor rather than 1080, and the place where the notification appears kind of looks like it could be where the notification should appear on a 1080p (assuming you’re ‘anchored’ to the top left of the screen). That said, I’ve had this monitor for a while, and the notifications have appeared correctly for most of its lifespan.
I’ve seen this happen as well, although I was able to fix it either by restarting the app or restarting my PC(can’t remember which,) it was definitely very strange.
Of note, when it was happening, and I right-clicked the battle.net icon in the system tray, the pop-up menu would also appear “anchored” in the middle of the screen where the activity notifications were showing up. Definitely seems related to resolution.