Question about oAuth authorization?

Question

OAuth

I decided to implement authorization on the Google oAuth website.
Added JS code. Google has made the settings.
A window appeared asking you to authorize me. After that, Google successfully authorized.

Now the main question is what of this and in what form do I need to fasten to the server?
Should I send/store something to the server?

Do I understand correctly that Google itself sets a cookie in the browser during authorization?

Answer 1

For example, googling? https://yandex.ru/search/touch/?text=google+oauth2...
https://habr.com/ru/post/325518/