Normal household:
"I need to free space on my phone"
*Delete pictures that are synced to Google photos*

My household mental gymnastics:
"I need to free space on my phone"
"Let's start by copying images to my computer"
*Discover a bug in Dolphin when using MTP*
*Report the bug*
*Figure out a workaround*
*Copy the pictures*
*Update immich*
*Upload pictures to the NAS*
*Wait for it to process*
*Make a zfs snapshot*
*Finally delete the photos from the phone*