Google has announced that Chrome 80 stable release will be available for users starting today, February 4. With Chrome 80 Google is enforcing a new secure-by-default cookie classification system for providing even more privacy to users.
With the stable release of Chrome 80 this month, Chrome will begin enforcing a new secure-by-default cookie classification system, treating cookies that have no declared SameSite value as SameSite=Lax cookies. Only cookies set as SameSite=None; Secure will be available in third-party contexts, provided they are being accessed from secure connections.
For checking whether you are running the latest Chrome Google suggests you to visit this page and if all the rows are green then your browser is applying the new defaults.
You can read more about the cookie changes by clicking here.