iMac with LR Classic CC, LR photos are stored in my Pictures folder on desktop
Under the LR hamburger icon on my phone is this:
Under Device Info & Storage on my phone it says 24.3 GB of 25.2 GB used. Clearly I need to free up some space.
When I go to the Manage Storage page in LR on my phone, there it says: Release locally stored copies to free up space on your device. The originals will still be backed up in the cloud. But I can't select this. It seems to be greyed out.