Vox even edited some of their 2020 articles to add that this is a “serious question” and that “many people are saying this

Any source? this sounds interesting and something I would like to share with others.

Edit: Nevermind google worked https://en-volve.com/2021/05/25/leftwing-vox-quietly-deceitfully-edits-article-debunking-lab-origin-of-covid-after-latest-news/

Edit 2: Ok these articles and tweets don't mention the kind of edits you mentioned. Let me hunt a bit more. In any case will still appreciate a source.