Quantum physics or string theories have to develop their own mechanics of fundamental interactions or else share existing physics:

Classical mechanics, where space and time are invariant and gravity causes attraction between bodies, but not distortions of spacetime at all.

Relativity, where space-time is covariant, gravity distorts spacetime, but not attraction between bodies at all.

Time is probabilistic and invariant in quantum mechanics.

The four known fundamental interactions – gravitational, electromagnetic, strong and weak interactions, especially gravity – have different explanations, in different forms of science.

Gravitation is explained differently in classical mechanics, relativity and quantum mechanics.

Such fundamental interactions are interpreted differently based on different laws depending on the different types of science.

Gravity is shown differently in classical mechanics and relativity.

So quantum mechanics must also develop its own mechanics and its own laws, unless quantum mechanics follows classical mechanics or the laws of relativity etc.