This is so much better than a remake or remaster.

id Software led the way, decades ago, making Doom and then Quake engines open source. I wish more studios would donate their old software to the public domain.

Fingers crossed one day we will get Unreal source code. I wonder if it even still exists.

The binaries in question are various GNU and FOSS tools from elsewhere, not part of the Ventoy project itself. So no, the Ventoy author does not own the copyright of the tools in question.