Yes, they fail when I try to run a flow. But all my ‘Google Sheets’ cards stopped working on 1st of September @ 9:00.
I did some checking and found that the cards I was using were at some timepoint deprecated:

And when I try to replace it with the new type of card, where I paste the URL of the sheet into the card, the ‘missing token’ error comes when I try to select the sheet:

I have created a ticket @ Athom.