Hello,
I am wondering if you have heard about the App Immich? From what I have seen so far it looks like Google Photos and it might be better than Synology Photos. Especially Synology Photos doesn’t seem to get much more improved. Immich at the other hand is in heavy development.
It would be cool if you can make a video about it and how you can install it on Synology and how to access it from outside your Network.
Here is the Link to the Website
Thank you