Chat Text Bubbles over Player Characters?

[BrachyXIV]

I'm still looking for the specific instance I mentioned where they talked about icons and a finite limit to the number of things that the UI can handle at once, but here's a fairly recent answer from PLL LX regarding a question with similar technical demands:

I don't think that would be connected with a temporary popping chat bubble though, this answer seems to imply the permanent interface linked to character models. I'm no expert so I'm talking out of my butt. But I've seen that Chat Bubbles are possible in the game due to outside sources so it doesn't make sense for the developers themselves to be able to do it.