What’s push to talk and why is it such a great feature?

That sounds like a good thing.

I must admit that I can’t think of any examples of this ever being a problem though. It might also be because I’m just so used to crappy software breaking things that I’ve just come to accept it as normal

Given other comments in this thread and the reactions I’ve seen on mastodon, people are freaking out, but I just don’t understand why. Can someone more intelligent please take the time to ELI5?