Below is the information.

Starting September 30, 2024, Google Workspace accounts will only allow access to apps using OAuth. Password-based access (with the exception of App Passwords) will no longer be supported. POP and IMAP are NOT going away and can still be enabled with apps that connect using OAuth.

Dear Administrator,

We’re writing to let you know that as we previously shared in this blog post, we’ll be turning off access to less secure apps (LSA) — non-Google apps that can access Google accounts with only a username and password (basic authentication) — starting June 15, 2024.