Hope you were able to fix your Home Assistant. I just came to quickly recommend a way to easily backup your installation. https://github.com/sabeechen/hassio-google-drive-backup

If you use the audio captcha it’s done it just one go. That’s been my experience at least after having been stuck in one too many endless loops with pictures.

You can still download and play it. It doesn’t get removed from your library.

About the matchmaking, I don’t know, sorry.