What is OAuth2 leak？

What is OAuth2 leak？How should I protect myself from vulnerabilities in Google OAuth endpoints? Why have there been so many discussions lately about this OAuth leak issue? Has anyone encountered it while using vpn wifi or an antidetect browser? Recently, I've heard many people outside mention that this leak can extract tokens and IDs from Chrome configuration files.

The main issue seems to be with the multiple login endpoints. When using tools like MoreLogin or other anti-detect browsers, they synchronize Google accounts across various services. However, normally, as long as the encryption between these endpoints is robust, this issue should not occur.

Iam used this tool but its Define bad. Genareally the attacker would not have full access to the account as token genarelly only offer a limit.

In my opinion, OAuth 2.0 is an authorization framework that allows user's information to be accessed by third party services without revealing their credentials.