Also, Davinci Resolve has added photo editing functionality since 2
V21 iirc, but it’s not a drop-in replacement. It’s Davinci Resolve though, so expect to be blown away.
Eh, using resolve for photo editing seems a bit like using blender for video editing. It can be done, and it isn't that bad, but there are so many better options
I've been happy with Photomator (now owned by Apple).
It's Apple-only, with versions for iOS/iPadOS and Mac. It integrates seamlessly with the Apple photo library.
It's only "gotcha" (which I don't find to be a problem) is it leverages Apple processing where possible (ie the Apple RAW engine). That doesn't bother me, but if you're a pro-level photog and need some special sauce for your RAW workflow, it might not work.
BMD just added their Lightroom-competitor to resolve studio. It’s pretty new so I imagine it is not as feature rich as Lightroom, but could be worth looking at currently and I’m sure it’ll improve