You as an individual are free to peruse any site you want. In practice, it might be hard to use US cloud providers in Europe lawfully to process PII, although s

You as an individual are free to peruse any site you want. In practice, it might be hard to use US cloud providers in Europe lawfully to process PII, although some exceptions have been ruled - such as the french DPO ruling the use of AWS lawfully for the state vaccine program, as the PII was only encrypted in AWS, and AWS did not have the encryption keys.