ah it's not? that would be a blocker for me

There's lots of other options... I'm not sure I could recommend Synology these days as they've started to vendor lock to only their drives, etc.

You could get a NAS from TerraMaster and swap the OS for TruNAS Scale or Unraid. They're relatively reasonable for the hardware, you can also DIY the hardware but that brings in other issues. Got an F4-424 Pro for a backup NAS myself. Worth noting a few big drives will cost you more than the other hardware though. 12TB was the pricing sweet spot when I got mine.

https://www.amazon.com/dp/B0CPPD51B9?th=1

In my case, all photos are stored in Synology, then run nightly backup to Backblaze.

I'd really like to build a bolt-on to immich that makes calls to imagemagick just to do simple stuff like rotate and compress, there's a ton of forks tho there must be someone who's thrown in one of those web editor suites

Are cameras that don't support compression common?