No, if you read swann profile you will know he just transcend one narrative as does vivec.
Swann AP (Completely transcends the primary narrative which contains the whole of the SCP Multiverse, whose full extent has been described as possessing uncountably infinite higher dimensions, perceiving it as nothing but fiction from a higher layer) just one, while vivec transcend even higher in the 1-A
This match would actually be a stomp. First, Swann has no regeneration. Swann is around baseline; Vivec is way higher from powerscaling and should be upgraded to 1-A+ or higher soon. So, there is a likelyhood of an oneshot
Second, Vivec got True-Godly Regeneration and high-resistance to Conceptual Manipulation and roughly everything that Swann can do so Swann can't killed him.