Inreach mini 2 Forerunner 955 for running/hiking

Hi! Im using a forerunner 955 and a inreach mini 2.

I can connect the watch and inreach together but im curious what data is transmitted between them. Can i use the Inreach as a gps for the forerunner watch?

My situation is this that i am planning on running/hiking with the watch and use the inreach as a gps tracker. The inreach has a greater battery and better gps receiver. Is this solution even possible?

Or do any of you have a solution for this problem?  

best regards Hugo