I know some people use Apps like Photoshop to edit their photos, but most Mac users just use the very capable Photos App. I use Apps like Luminar as an Extension Plugin inside Photos, it works great. If you own a DSLR type camera, you are faced with whether to use RAW or Jpeg photo format. You can edit RAW images in the Photos App. If you have RAW photo capability, then read this article describing why RAW is preferable to other formats. It also explains how to edit RAW images in the Photos App.