Unity isn’t a game engine. It’s a malware-pushing advertising network which merged with a game engine to acquire a delivery channel and now wears its skin. This is fine for the bigger devs and publishers structured around platform relationships, but for everyone else? Gamemaker, Godot, Unreal, Defold… pick a flavor, they’re all on square one.
That link just seemst to be a mastadon feed and I cna’t seem to get any info about the engine from there.
https://github.com/ZILtoid1991/pixelperfectengine