Yes! FusionAuth stores MFA details on the user object, and you can search for users with MFA enabled using Elasticsearch queries.
For example, in the Admin UI’s User search, you can run:
_exists_:twoFactorThis returns all users with at least one MFA method configured. You can also perform similar searches via the User Search API to build custom reports. For more details on searchable user fields and Elasticsearch queries, see:
User Fields Reference User Search with Elasticsearch