For everyone who is finding this thread since the meeting link no longer autopopulates in meetings, I wanted to clarify:
In the past, it wasn’t HubSpot adding in the Google Meeting link but Google adding it in automatically. It looked like us, but we can’t take the credit. As this post shows, HubSpot does not have an integration for Google Meets. We are currently looking into what changed recently on Google’s end to prevent them from adding these links on but cannot guarantee any changes from our end as this was not something we were supporting originally.