Advanced Masking Techniques

Please post some of the images in question. 

In my experience even well photographed images (so none of the »curly hair in front of wold vegetation«-stuff) do require some manual amendation to automatically created masks (be it Photoshop’s default features or from others like remove.bg). 

But actually that depends not only on the images but also on the expectations/use-cases for the resulting images. 

Edit: Some videos … 

                          hair and fur edges photoshop 2024 Select and Mask           

                          Turn On This Secret Setting for Flawless Hair Masks! - Photoshop Tutorial           

                          EASY selections secret to cut out hair in Photoshop           

                          Secret Buttons for Precise Hair Selection in Photoshop!           

                          Master Hair Selection - Best Technique for Every Situation