Notification LED turning on for no reason

Hi there,

Since the last update in November with Android 11, my notification LED is very often wrongly blinking green or blue depending on the app.
The led still blinks despite having no notifications.

It does light on when I have actual messages on Messenger or Signal, but once I’ve read them, the light is still on. Weirdly enough, if I send a message without prior notification, the led will still light for no reason.

It might have to do with the “Bubble” messages on Android 11, but at this point, I can’t be too sure.
Does anyone have the same problem ? Do you know how to fix it ?

Thanks a lot folks,