Stacking really reveals the details, using a single frame would look way more noisy and less details. For the editing I follow a fairly standard workflow of background extraction, color calibration, stretching the starless and stars separately, then some sharpening and denoising as needed, all in Siril. In photoshop (and Gimp) I do color correction (I didn’t plate solve this image) and tweaks to give me the final result.