All chrome browsers are enrolled into https://admin.google.com by an ADMX ingest token, setup on Intune. This allows for easier extension management from the Google admin portal, rather than using ADMX ingests to Intune.
Direct link to manage;
https://admin.google.com/u/3/ac/chrome/reports/browser-extensions/ - Search for extension desired in box below, add whether to force install or disable etc