I’ve been there. I told the project manager to buy me a burner phone+SIM or I wasn’t using it. The admin disabled the SMS requirement as a result & for a brief project I used it in locked down container not tied to any of my personal info. I also was bombarded with CAPTCHAs any time I tried to use it despite keeping the cookies in that container. It was a bad experience, & I pray I won’t have to interact with it again.