Works if all you need are Gmail and Docs.

It's a very bad idea if you want to use the account as a Google account. i.e. smart home does not work, lots of user features do not work, there is no workaround to this other than "don't use a Google Workplace account for personal life things, get a Gmail account".

Example of the pain to try and migrate from Workplace to Gmail just to get the workaround working: https://medium.com/@buro9/one-account-all-of-google-4d292906...