How should I set the frequency and cycle to extend the duration of InMode?

My jawline is sagging and the skin under my chin is starting to fold, so I am considering getting both the InMode FX and FORMA modes. I have heard that combining the FX mode, which removes fat, with the FORMA mode, which enhances skin elasticity, is good for improving firmness.

I want to receive the treatment properly to maximize the duration of the InMode effects, so I am curious about the generally recommended treatment cycle and number of sessions.

I heard that if you search online, it is usually most effective to receive it three times in a row at intervals of 2 to 4 weeks.

If I complete all three sessions of the package like that, does the duration of InMode tend to get longer?

Or I am wondering if it returns to how it was quickly over time even after receiving all three sessions.

I am posting this question because I am wondering if combining InMode with Shurink or other lifting treatments for maintenance helps extend the duration of the results.