I downloaded the file.
There are about 300+ files within the different folders.
I went through and opened a selection of them. The format does look identical to the way that @Brink writes his files although they have MajorGeeks credited at the top. By this, I mean that when Brink writes his files he includes an extra line or two between commands. On those that I opened, they were actually Brinks because it has his name on them. Here are a couple . . .
If you look in the Folder Add Shut Down With Options Context Menu, you will see . . .
If you look in the Folder Reset Task Manager to default, you will see . . .
If you look in the Folder Windows Security - Firewall - Windows Defender, you will see . . .
They obviously forgot to change these. As I said, i only went through a selection so there are probably a LOT more!
There is NO mention [reference] that some of the files are Brinks [TenForums] either.