I’m on the fence about purchasing Vampire the masquerade 5e books on the VTM Nexus, but are the PDF included as well (like for PF2)?
No, that’s not an offering that the World of Darkness team makes available. You can purchase the Renegade / Demiplane hardcover / digital bundle for a book to get a hardcover copy, but we are not able to offer PDFs like with Paizo Connect.
I continue to hope they’ll change their mind on this, but I think it’s unlikely at this point. (Obviously not Demiplane’s fault nor responsibility. I imagine you guys would love to be able to do it, as it makes the Nexus more valuable.)