How are there so many users, see my other comment but i will ask here as well but starlink's american company and sanctioned iran so how do the details really work?

And how do starlink recievers enter the country in the first place?

This is good that there is still a way to get censorship resistance even after all this perhaps joining it with other protocols which can work via bluetooth,wifi etc. and are more secure connecting to something like this, a secure internet access point could be developed but I don't know too much about it.