@NOTimothyLottes You could upload your desired image/zip on something like google/mega drive or dropbox, comment-in the DL link for the texture & instruct what shadertoy ichannel should be replaced using this (works on Chromium browsers like MS Edge):
https://t.co/YJZl7ToU1I
One issue that drove me to produce videos through @ThreatInteract is that so many youtubers kept making "Unreal Criticism" vids with such low quality information, the conclusions would always paint stylized visuals as a "solution" and/or downplay fundamental engine issues.