Hey Blender fam! If anyone wants the OG color-checker map from Blender as an actual Texture and not just a Tester Map, I re-created it in Photoshop! Now you can actually place
Checker Node — Blender Manual
Blender Addon: Texel Density Checker 3.4
Checker Deselect in Blender — Blender Daily
Tutorial: Checker Deselect in Blender - BlenderNation
Free Add-on : Quick UV Checkers - BlenderNation
Blender 2.8 Checkered Texture - YouTube
Blender Math series Part 2.1 - Building Advanced Checkers Node Group In Blender 2.8 - YouTube