I have a non-tech business approaching limited release. I'm very interested in two things: - Data safety and privacy. As I'm UK based - can my data be restrict

I have a non-tech business approaching limited release. I'm very interested in two things: - Data safety and privacy. As I'm UK based - can my data be restricted to the UK only (no magic round the world trips inside your backend)? do you comply with the GDPR? - Can I set up postgres (WAL) replication to a non-neon database?