For me this falls apart on the consumer side of things.
UE5 games are manifestly lower quality than games built on custom engines. Optimization is especially worse. UE5's performance baseline _requires_ the use of upscalers (DLSS/FSR, fake/AI frames) in order to hit basic targets like 1080p@30fps.
I won't buy games built on Unreal Engine. Homogeneity of this type is horrible for customers of the gaming sector.
>I won't buy games built on Unreal Engine.
I don't really understand making hard and fast rules like this. Clair Obscur is one of the best and most beautiful games I've ever played. The Witcher 4 has the best graphics I've seen come from a video game. Satisfactory is nuts to look at when you see an eloquent end game build.
I also don't understand why people knee-jerk hate upscaling/fake frames so much. I can understand for fast-paced competitive multiplayer games, but for something like Clair Obscur where the ideal way to play is on the couch on a 4k TV give me all the upscaling and fake frames you can muster.
I am not a graphics engineer so I hope someone corrects me, but my understanding is that Unreal uses a deferred rendering pipeline to handle complex lighting, and deferred renderers only work with temporal anti-aliasing.
The FSR/DLSS upscalers are typically superior to TSAA and are a reasonable replacement.
> I won't buy games built on Unreal Engine.
You're in an extreme minority. Also, unfortunately, Unreal is popular with indies who probably have (in general, relatively) more ethical staffing practices.