I can't recall ever using it much - BUT in the Linux eco system (Debian based), it keeps on adding more and more and more "speech dispatcher" streams to the Audio channel / sound mixer.

And like most frustrating things - there is no way to stop this process of every time open another webpage with readable contents, it opens another audio stream / channel.

And they do not seem to close down when I shut down the web pages...

So I'd say this is not actually a fault, as a for instance if I were to open 3 or 4 sets of the VLC media player, I'd get exactly the same thing.

I'd rather see it as a single program, with branches into the websites, instead of multiples of the same program, going into the different wesites...