I can’t say much on Diablo 4 but I have quite a lot to say on FFXVI

FFXVI is a fantastic combat system placed in an okay game. The game overall is occasionally good and sometimes even great, but it never fully delivers on what it wants. The world the game builds is incredibly detailed, but the game never lets you fully explore or live in it. The story has some grade-a moments, but they’re never built up to enough to make them really land. The combat system has a lot of depth if you want to get into it, but the game’s difficulty is too low to force you to engage with its deeper mechanics.

It’s really a mixed bag, but it’s a bold mess if anything. Soundtrack is also great