In an attempt to dip my toe into learning Photoshop I'd appreciate guidance on how to export copies of my Collections from Lightroom into Photoshop.
When you’re working with Lightroom, there’s no need for exporting entire collections. What you’ll do is to organize your collections within Lightroom, and do your main bulk of Develop work within LR. Then, if an image needs to go to Photoshop for more advanced work, right click the photo and choose “Edit in Photoshop CC 2018” (or whatever your current version may be). When you finish in Photoshop, close and save your work without renaming the file, and it will import back into LR automatically.
This is nearly always a one-image-at-a-time process, unless you’re merging photos into a panorama or HDR image.
See here for more detail:
A much easier path than I could have hoped for.