[FrontAid]

Agreed. I block them with https://github.com/bcye/Hello-Goodbye/

Add the following URL to your uBlock Origin filter lists and most of those chat bubbles are gone:

https://raw.githubusercontent.com/bcye/Hello-Goodbye/master/...

[jeroenhd]

Thanks for linking this, I never realised other people were annoyed enough to create a blocklist specifically for those god-awful chat popups.