I took some photos at an event and I need to go through them and get rid of the bad ones (eyes closed, things in the shot, out of focus, blurred etc.) I’m not a pro photographer so no idea where to begin with photo apps. I’ve used RawTherapee and Gimp a bit.
What app will let me quickly browse the photos and handle (delete/tag) photo formats together (both the RAW and the JPG)?
Digikam. It supports grouping (or stacking as it’s called in Lightroom) by filename, so you can auto group RAW and JPG. It has hot keys for flagging rejects/approvals during initial inspections and review, so you can just fly through them.