WebからUnity Shaderのライブラリを確認できるツール
https://xibanya.github.io/UnityShaderViewer/
https://xibanya.github.io/URPShaderViewer/
✨ Viewer
View your own shaders (or anyone else's) with auto-generated formatting, colors, and links to definitions.
✨ Search
(Experimental) Search the built-in includes as if there were actually an IDE capable of maybe parsing them reasonably well.
✨ Pastebin
Paste in shader code and see it instantly have links to definition and color markup inserted.
VSCode使ってる場合はまあShaderlabVSCode使えば良いんだけど、バージョンによって無い関数とかがあるので見てみるのもいいかも
xibanyaは良さそうなUnity Shader Tutorialsも作っている
https://github.com/Xibanya/ShaderTutorials