Surfshark says that it relies on "trusted third-party data centers." A representative told me the company is migrating to RAM-only servers, which would prevent the recovery of information were the server forcibly removed. As of April 2020, Surfshark reports that 70 percent of its servers have been moved to RAM-only, and the company predicts it will conclude the migration by June of that year.
https://www.pcmag.com/reviews/surfshark-vpn