You will have to splash out and see what's there. Last week or so there was no technical workshop material on the Leon 4. I sent someone there but nothing. Build decodes were there from the Vin on Leon 4s. For the overlap Cupra models you would get some materiel but not for the specific Cupra stuff may be ?. Suspect they wouldn't have split out the brand but could be wrong. I'm not a Cupra owner but Seat owner . Documentation could be thin on Cupra's. Begs the question of where Formentor stuff gets placed.
Wonder if you put a Cupra VIN in you get the build codes... if not then clearly they don't cover Cupra's by design.