How To Download the Default Metahuman Creator Animations?

Is it possible to use that animations on UE 5.3?

Or 5.6 is the only one where we can find that idle animation?

Once you have the “Metahuman Creator” plugin enabled, the animations can be accessed right in your project under: Engine → Plugins → Metahuman Creator Content → Optional → Animation → TemplateAnimations

No need to copy anything from the engine folder.