Just curious since I've been here so very long besides color bleeding "possible issues", with what i will mention what other issues are there to it? When we where learning this stuff back in the day (& this also works for concepts) was work on it at any resolution & then scale it down by /2 sharpen [not over sharpen], & do…
There are few more thing that matter . Substance Painter as any of modern 3d mesh painting soft does slightly more blurry textures because they don't work in integer texture space math. Even if you work in twice of target resolution initially . People used special one pixel brushes and pixel art style to do textures ones.…