I wonder if it is possible for the blender to do something like this?.
So, the idea is to use a Grease Pencil for work on the texture model like a vector on Inkscape, I can do it on Inkscape but it is better to work on live view directly on Blender, plus Blender already has a texture brush for Grease Pencil, making it a great option for texture work for the model.
the way I do it on video is to use a feed from the camera on the scene to plane, but it is super janky and tanks the performance, if you are interested in the way I do it check these threads below,
So I wonder if is there an alternative for this method.