I once had to implement an authentication feature for a Chrome extension through Cognito with Google Workspace accounts via OAuth2 or MS accounts via SAML as Id

I once had to implement an authentication feature for a Chrome extension through Cognito with Google Workspace accounts via OAuth2 or MS accounts via SAML as IdPs. That made me want to die. Just understanding what I want to do or have to do was unbelievably hard, and probably I still don't understand what I did honestly.