Welcome to the Zoom Developer Forum- I am happy to help. Below I’ve linked the resources for what is ‘OAUTH_URL’, and ‘URL_SCHEME’ are reference. The OAUTH_URL is the OAuth authorization URL and URL_SCHEME is the redirect URL. Please take a look and let me know if you have any questions.
Reference Resource :
Using a server with or without PKCE
https://marketplace.zoom.us/docs/guides/auth/oauth/#using-a-server-with-or-without-pkce
Redirect URL for OAuth
https://marketplace.zoom.us/docs/guides/build/oauth-app/#redirect-url-for-oauth
OAUTH_URL :
https://zoom.us/oauth/authorize?response_type=code&client_id=7lstjK9NTyett_oeXtFiEQ&redirect_uri=https://example.com