The source of that picture is Guerrilla Miniature Games: youtu.be/hmxZTICy4wI
I’m the one who took the screenshot and shared it in the Salamanders sub, then someone took it and shared it all over Reddit without context nor crediting GMG 😮💨
youtu.be
GMG Reviews - That old flame Warhammer 40,000 is back with an 11th Edition
YouTube video by Guerrilla Miniature Games