Here's a fantastic primer from Chris at Why Logic Pro Rules for anyone getting into spatial audio mixing with Logic Pro 10.7.

From the video description

"Logic Pro 10.7 is here! And what it brings with it is the next frontier of audio production. Spatial Mixing with Dolby Atmos and much more. Part 1 of WLPR's deep dive walkthrough explores this breakthrough news."

Part two can also be found in the video description.