A couple of custom formulas are helpful for the analysis. You can set it up under Custom Figures > Custom Formulas.

Scroll Depth Avg.

Shows, what percentage of a page has been seen.

Calculation:
image2022-6-2_14-43-12.png

Scroll Depth 50+ %

Shows, in what percentage of all page calls more than 50 percent of the page has been seen.

Calculation:
image2022-6-2_14-45-38.png

The first element of the formulas is filtered as follows:
image2022-6-2_16-58-0.png