An example,"La Cibeles" - this stops the tooltip. It means that after "called" nothing is displayed, however, there is also
<div align="right"> - and this doesn't stop the tooltip. (if we fix "La Cibeles" on „La Cibeles” for example)
So, quotes are working when they are with tags.
Can Tooltips be improved? It already can ignore quotes, it looks like it can be improved.

It's a solution for only one specific problem that I described, right?
Now imagine around 30 large books, how do I find them all? How much time to reread them, what do you think?

Okay, now who is "semi-agressive"... (rhetorical)
I opened this topic specifically to ask if there is a room for improvement because I'm sure there is, with no ill intention.
But I still haven't received an answer.
Just to confirm, please tell me that you cannot do anything to make quotes work like you did with tags?
As for Tooltips, finally they work as they should. Because J3 version was not very good, I got bugfix from Joomla team for it after several years!, but when they found out that it was for your product, they immediately stopped helping - I'm very curious to know why, by the way.