Cerebral (cerebral.com): first, their whole business model is about being a pill farm for controlled substances. So, out of the gate that's pretty concerning (but, yes, you can make a lot of money by providing easy access to adderall and ativan). Beyond that, they're having a hell of time recruiting providers and so their lead time for appointments is pretty high. They're still taking customers on a subscription basis, but can't provide appointments. I think it's just a matter of time before that whole mess collapses.
One Medical (onemedical.com): in early 2021, they were caught letting people skip the line for covid vaccines. The house select committee on coronavirus investigated them and released a pretty damning report back in December, and their SEC filings have indicated that they're under further investigations by some various organizations. Based on this information and other chatter I've heard, I don't think that's the only questionable thing they've done.