Thursday
I was forced to transfer my Nest account to Google Nest and now when I try to link my cameras they say they are linked to another account. I can t log in to that account to remove the cameras. What can I do
Friday
After you migrate your Nest Account to a Google Account, you log into the Google Nest app selecting "Sign in with Google", using the same Google Account to which you migrated, and you should still see all of your 1st gen cameras in the Google Nest app, as well as seeing them n the Google Home app (but with less functionality in the Google Home app.
You do not reinstall anything.
That's what happened when we migrated in 2020.
Here's a Help topic on migration: