> I recall being quite surprised to learn that Arc Raiders was not only an UE5 game but would also run nicely on my PC

Yeah, Unreal Engine (5 almost specifically) is another example of things that are unoptimized by default, very easy to notice, but once you work on it, it becomes invisible and it's not that people suddenly cheer, you just don't hear complaints about it.

It's also one of those platforms where there is a ton of help available from Epic if you really want it, so you can tune the defaults BEFORE you launch your game, but hardly anyone seemingly does that, and then both developers and users blame the engine, instead of blaming the people releasing the game. It's a weird affair all around :)