I have bumped the version of @typespec/http-specs in #7984 and now the spector case payload/pageable fails to generate.
I think this is because this case was updated to include cases with "nested nextlink" and some other new scenarios that we did not really implement.
I have to temporarily disable this case in the above PR to unblock the version bump of typespec.
We should fix the generator on the new scenarios and introduce this case back.