What would you say they lock you into? What is AWS doing specifically that makes it harder to move between providers than if they were not doing that thing?

1) A vast majority of users are relying on managed services to some degree.

2) Permissions as a whole are usually very ingrained into much of what orgs rely on.

What do you mean when you say managed services? Because to me managed services are definitely not vendor lock-in because you can self-host most of those services and just migrate your data over.

With regards to permissions, I don't feel like it's possible to permission across an entire platform and not make it difficult to migrate over – do you know of any provider or platform that allows for cross-platform authentication with permissions?

I generally think of managed services as anything not run directly on EC2.

I agree about permissions. I'm just illustrating where the lock in occurs.