Even if it didn't have the performance issues on the XSX and PS5 with the core UE5 technologies enabled, the existence of XSS basically fucked any large-scale adoption of UE5 and use of these core technologies, because the XS tard pack console is just not performant enough that it forces the devs to roll back to using LODs and traditional techniques for that one shitty console.
its clear from the latest batch of delays that no dev gives two shit about the xs or even the xsx enough to optimize for it.
I highly doubt xs is the reason for how long its taken for us to get UE5 games. It's mostly epic. They didnt release the fucking thing until 2022. And then when they did it was extremely poor performance wise. It wasnt until 5.2 when foliage finally got nanite support and it wasnt until earlier this year when they finally improved CPU performance by 50%.
A LOT of games like Immortal, Lord of the Fallen, Robocop and even Black Myth to some extent were fucked over by Epic. Not XS.
It's been obvious for a long time now that no dev, not even epic, gives shit two shits about the xs. MS had to send Coalition to get the matrix demo working on the xs because Epic didnt want to optimize for it. It didnt hold back the Matrix demo, it didnt hold back Wukong and certainly not hellblade 2. devs just downgrade the shit out of the xs version and call it a day or simply refuse to ship it like we have seen in black myth and dune recently. even indie devs are like fuck this console.
UE5 just like UE4 has taken some years to mature. Remember, Batman AK also shipped on UE3 instead of UE4 despite UE4 releasing a year prior to its release. this delay was expected. we saw some good results last year in Robocop and Remnant 2 at times, and this year Hellblade 2 and Wukong are finally delivering on the promise of UE5. Marvel's 1943 is just going to take it to the next level next year.