I think it’s quite normal (at least at some companies) for a CTO to spend some time writing code as part of setting technical direction. In that case there might be other executives who do the other parts of the CTO role you imagine (eg having lots of reports).
Obviously nobody knows what the private repos are. I was talking about public projects. "Gary Wang" is not an uncommon name. For example, here is another one with a Wikipedia page https://en.wikipedia.org/wiki/Gary_Wang
That's a good point. For whatever reason, I missed the first part of your comment. I did indeed operate under the assumption, incorrectly, that it was his profile.
What's interesting is that a lot of the FTX people on the about page (https://about.ftx.com/), including Gary Wang and Dan Friedberg have deleted their LinkedIn accounts, whereas they were available earlier. If they're deleting something so harmless, then who knows what else they are deleting and covering up.
I don't think this means anything. They might just not want any publicity, or to be harassed by malcontented FTX depositors. In the context of the FTX implosion, their LinkedIn profiles are far from harmless.