I stopped using Photoshop years ago. There are better and cheaper options, IMO, for map making, if you aren't going to need Adobe products for anything else. The only thing that makes a difference is that Adobe's text editor is the best. If you use it for anything other than mapping, sure, you can definitely use Photoshop to make a good map. I've done it before, I just haven't in a while.

Try Affinity, try Clip Studio, for low cost single purchase programs that do everything you need to make a map. Well, mostly everything. Or Other World Mapper for a map-specific program.