I answered with Gimp as a possible answer to this question you’ve asked here:
[…What’s a better, more reliable alternative for texture painting?…]
Links to articles can help you to enhance your current Adobe 3D PhotoShop painting skills:
– https://helpx.adobe.com/photoshop/using/3d-painting-photoshop.html
– https://helpx.adobe.com/photoshop/using/3d-texture-editing.html
– https://assist-software.net/blog/hand-painting-3d-models-photoshop
And on Youtube you can also find a lot of tutorials on the 3D features in Adobe Photoshop:
Youtube Photoshop 3D painting tutorials
