And yet, the same is true for Apple photos about ease of export:

If you set the pref to keep originals locally, they're all on your drive, in original form, as well as the derived versions including caches of raw to jpeg, resolutions, and edited versions.

That said, Apple Photos does let you export even if only in cloud. Open the library, select all, and File > Export ... > Export Unmodified Originals.

It pauses for a second or two on my quarter million images, but is then happy to comply.