Another option for anonymous mobile service: https://silent.link/ https://silent.link/ eSIM, global, variable pricing per country with per-GB billing, anonymou

Another option for anonymous mobile service: https://silent.link/ https://silent.link/ eSIM, global, variable pricing per country with per-GB billing, anonymous crypto payments and no KYC. Although it seems to not have some of the additional security features of the OP.