Refresh Token Rotation (https://next-auth.js.org/tutorials/refresh-token-rotation)

[mfapproach]

Your documentation seems to be incorrect regarding the calculation for "accessTokenExpires". Google access_tokens have an expires_at field which is the date it expires expressed in seconds, not the number of seconds until it expires. It should be accessTokenExpires = account.expires_at * 1000. This drove me nuts for awhile, but I just figured it out. I would fork and fix it, but I don't have the time.