GA4 report for A/B testing statistics -- 3

We need someone to guide us through the process of creating a GA4 report for A/B testing statistics depending on the parameters sent in Data Layer of each of the steps of a relevantly simple form. More details are restricted under NDA but we are willing to discuss them privately. We're looking for someone to guide us on a call upon agreement.

This project involves previous proven record of work with GTM and GA4, therefore if you could attach several relevant examples that would be great.