I work in natural resources. All our crews want to use Field Maps for everything, and so do I. But the standard 'natural resources' workflow - "stand in one place, and list everything that you see" - is hard to set up in Field Maps (and most ESRI apps). Forestry plots, plant surveys, fish sampling, fuels transects, pre/post monitoring..
We need to be able to set up a single form where fields from the parent feature and multiple related tables can be filled out together, 20-30+ different related records can be added, and these lists of things (trees, plants, etc) can be navigated, sorted, and edited in a simple, scrollable way. There are a lot of posts out there with workarounds to provide something like this, but actually building it in as a designed feature would make it SO much easier to support these kinds of work.