Two *s making something constitutional isn't my claim. Also, there exists a lively debate among Const. scholars as to the exact nature of the VP's role in certification as well as any allowances afforded to him to deviate from prior VP practices. One item in particular that even the anti-orange scholars have mentioned is the ability to send the disputed votes back to the states for verification. The states can simply attest to the certainty of the correct electors, send it back to the VP and be done with it. Pence, who claimed to believe in the need for election integrity assurances (Pence expressed concern about “the integrity of the 2020 election,” citing “significant” and “troubling” voting irregularities in an op-ed for the conservative publication Daily Signal.) didn't even ask for reassurance - from anyone. And did Trump really say, "Mike Pence, I want you to overturn the election!" ? (As Pence claims...) Or did Trump say, "Mike Pence, I demand you fight for obtaining the correct electors!" I don't know; neither do you. I believe interpretation of any edict from Trump to Pence is subject interpretation. I interpret Mike Pence's claims to be self-serving.
I suspect that if you're being told that there's a lively debate among constitutional scholars as to the role the VPOTUS has in certification, they may be lying to you.
The only occurrences for any version of "certify" including "certificate" appearing in the constitution is in Article 2 section 1, which deals with the electors, and the 12th Amendment (as above), which replaces a portion of Article 2 section 1. Also, in the ratification section of the Constitution, which dealt with the initial exercise. If the VPOTUS has any powers implied here, they must be hidden in a penumbra even more obscure than the deep shadows of nothingness where SCOTUS found the justification for R v W. Which is to say, it's not there.
The VPOTUS, as the president of the senate, gets the votes, signed, certified, and directed to him from the electors. His role is to preside over a joint session of congress to count the electors' votes. You guys keep saying certification. The only certification in the constitution is the certification that electors do when they sign the lists required by the constitution. Now I am not claiming to be a constitutional scholar. But if I am misreading this, you'll need to point out exactly where the constitution gives the VPOTUS any authority to certify anything, much less change the slate of electors, or have any other power that could possibly have made Trump the winner of the 2020 election.