This is a photography community, where you share photographs. If you want to share a "valuable tool with photographers here essential to their work", you share some photos as well, put together a tutorial, to show what the tool can do, not just promote it.
You shared a screenshot with digital art, which has nothing to do with photography and two videos. No process about how you can use the tool either, but thanks for your ironic apology.
RE: The FREE Adobe Photoshop/Illustrator/InDesign Alternative (You Need To Know About)...