Impact on "Insecure apps disable connection to G Suite accounts"

[k-narazaki]

It is announced in the Google Workspace update notice that "Insecure apps will not be able to connect to your G Suite account".
If the above is disabled, can ruby-gmail be used as it is?

Information site：https://workspaceupdates.googleblog.com/2019/12/less-secure-apps-oauth-google-username-password-incorrect.html