Are the people on Upwork (and elsewhere) saying they can achieve Google PageSpeed mobile scores of 90+ all a scam?

I’ve read a couple of articles on this practice, but dunno how widespread it is. Got me nervous.

Also, no one seems to guarantee Core Web Vitals passes 🤨
I’ve interviewed a few and they seem to say the same things. Almost the same language use.

A lot of these have 500+ jobs and some have mid 6 figures in Upwork earnings, so they’ve been around for a while.