Launcher notifications not working

I have installed /e/ in December 2019 and been updating it OTA up to the latest e-0.12-n-20201001.
All this time the green notification dots on the icons were absent.
Now I might have changed something and the notifications showed up as exclamation signs instead of numbers.
What can I do to get the notification dots on the icons working?

You can’t have numbers, only a green exclamation point.

Why is that? It’s been a while since I used stock android. Been on iOS for a couple of years. Now I see this feature isn’t here. Is it limited to Lineage & /e/?

Think it would be a good idea to tell the community who has which launcher. Otherwise it’s ridiculous.