Dump all the folders into digikam. You can rename, reorganise, dedupe, add tags, detect faces, add geotags and so so much more. It will take some time and doing but you will have your entire photo library in the exact shape you want.

Yes 5G might be good but not sure about latency, NAT, port forwarding and all. Haven’t ever used mobile networks for homelabbing.

it’s about carefully tuning shares to what actually needs to be on the cache vs what can be directly written to disks. For example the downloaders can download to the cache shares but when the *arrs are moving the files, have them move to shares which are disk only. So you can get fast downloads and repairs, and a slower move to disk which should not impact performance much.

I agree it’s too much tuning which is needed, but once you do it, it works fine