Allow 1080p@60fps in any 3rd party camera apps?

why Samsung’s implementation of the Android camera framework denies third party developers access to some feature that are available in the native Samsung camera app. This includes high-speed framerates such as 60fps, 120fps and 240fps
And what is the solution to get around this problem? (get camera preview with 1080p@60fps in my app) thx

I think it is a policy question you are asking. There is no announcement about it anywhere I found.
But as far I know Samsung does not allow many features to its 3rd party developers like tele camera, sometimes depth camera and FPS restrictions.