Most UX/UI designers need to learn and master "pixel perfect" design, which incorporates the concept of a 4pt (or 8pt) grid system, for equal spacing and symmetry throughout the design/project.
If you had an automatic feature that did this across all elements (or all elements within a container) that would be ideal -- especially when working with developers. It would need to be flexible between responsive design & breakpoints.
In Figma, this feature is found with using Auto Layout.
Here is a video explaining the concept: