> if uploaders dispute the claim and appeal decision to uphold the claim, then the copyright holder is required to send a full DMCA
I have heard that the dispute process uses dark patterns to punish uploaders for actually using it -- e.g. you must select between reasons for your dispute, none of which is "the claimed material isn't actually present."
Looking at copyright claims I have on my channel (these are valid music claims, for what it's worth), I see a dispute option labeled "The video is my original content and I own all of the rights to it", which I think covers the case you're describing.
That's not quite the same thing. For example, a work may be public domain, in which case it is not your original content, but nobody else owns the rights to it either.
