Ask HN: Why does Zoom leave a tab behind?

I love Zoom. Super efficient, no nonsense online meeting.

However, after every meeting it leaves an open tab behind.

I'm genuinely curious why does this happen? Figma does not leave a tab open, nor does any other app that has web link to installed app transition.

What makes Zoom do this? Why can't this be solved? Why do I have to manually clean-up all the open tabs?