Unreal Engine 6 announced with Rocket League..

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It feels like UE5 has barely gotten off the ground tbh.

It's only been like 4 years since the first games came out on it and so many of them have struggled with poor optimization, stutter, and other problems; certainly nothing so far looks on par with the famous 2020 reveal.

Maybe they're giving up on fixing 5 and hoping to start again with a clean slate.