Considering your apparent adversity to surveillance advertising US tech giants, it’s a bit of a surprise that you would consider using ItsMe, a service that forces you to trust Cloudflare and be subject to Cloudflare’s bullying, oversight and access restrictions. There is no way to use ItsMe without letting Cloudflare see your sensitive data.
That said, I do not know the answer to your question because I would never even try to use ItsMe in the very least because of it’s hostility toward tor users.