They definitely aren't. They're using Chivo which is a centralized custodial wallet solution. Transfers are just updates to their MySQL store - as they should be. Chivo only uses Strike's private LN nodes nobody else is allowed to peer with when facilitating an international transfer -- between two of Maller's own accounts.

Chivo is not crypto. And that's what most folks there are being forced to use by the local dictator. It's centralized, trusted, censorable and entirely antithetical to the Satoshi white paper.