This one was in Smash 4 as Shulk’s stage. It’s based on his game Xenoblade Chronicles after some area. I wasn’t a fan of it in Smash 4 and not in Ultimate either.
The top of the stage would be a decent stage on its own.
But it’s too wide with too much chaos in its design.
I play it every now and then and I’m glad when the match is over.