Yup, me too. And I didn't even realize what the issue was until I read this thread. I knew I was getting a lot of alerts that I don't normally, but my brain wasn't working enough today to figure it out.
Doesn't help when you have a red dot obsession. I can not leave notifications just hanging. I must clear them all (unless it's a notification I need to follow up on - like my fridge needs a water filter, so that notification is still on phone to remind me to get a water filter)! So I also try to make sure notifications I get are important and worthy of my time. I know there are new replies to threads I follow because they show up on the list of unread followed threads - so that notification is just so useless. Why is it even a thing to start with???