Looking for a good photoshop alternate

Yes but it does have some editing and metadata management features. Personal opinion is everyone should start with a photo manager and then only use another program if you need more. On Linux Shotwell is another photo manager and Digikam is cross platform. I know my wife uses just Shotwell. She has never needed more. I use Digikam because it is a little more powerful and flexible but less elegant. My wife is into photos... me not as much too.