Can Spring Security OAuth2 Authorization Server scale horizontally?

Question

I need to handle authentication of hundreds of thousands of users.

For the moment I have bunch of microservices and a single SpringBoot app configured as Spring Security OAuth2 Authorization Server.

Does Spring Security OAuth2 Authorization Server support horizontal scaling?

(for example, Dockerize that Spring Security OAuth2 Authorization Server and use AWS ECS to launch multiple instances)

I cound't find any official Spring Security OAuth2 documentation talking about scalability.