The only additional data that (some) vinyl has over CDs is inaudible ultrasound. Ultrasound is intentionally omitted from CDs because they're intended for humans to listen to. In all audible aspects a correctly mastered CD release is closer to the original sound than any vinyl. And if you really want ultrasound (perhaps your dog enjoys it), you can get digital releases at higher sample rates.

> just genuinely more data.

Mastering is mostly done purely digital, so only when they are pressed are they converted to analog grooves. This can never add new data / information.