Texture brush mapping mode: 3D stencil — Right-Click Select
Texture Paint is Glitchy and Clone Stencil Doesn't Work : r/blender
Blender-4d: Texturer un visage avec le Texture Paint Stencil
Problem with texture painting using a stencil. I don't know how to remove the UV map from the stencil. The stencil works but after I paint the object the stencil gets ruined