I have never seen this.

There is absolutely a certification process, but playing legal whack-a-mole with fly-by-night counterfeiters is difficult.
This is why buying reputable brands from reputable sellers is important.

But even then, I remember years ago I read an article about major retailers selling counterfeit brand name SD cards that didn't meet the labeled performance specifications and had very poor QC. Turns out that gray market sellers were buying batches of the real product that failed QC and just reselling them as though they were fine, and they ended up making their way back into the distribution network.
In the end the conclusion was that we're all kind of fucked until retailers start being way more strict about their supply chains, which they are disincentivized to do, because the current system gives them plausible deniability on things like child labor.