I haven't either. My opinion is based on my own anecdotal observations, and news coverage, both of which may be biased.

I do follow fringes of online anarchism and anomie, and I was surprised to see so much support for Trump, when the polls were showing him so far down. And much of that support was so odd that I thought it ironic. But whatever.

I'd like to see such a study, for sure. But I'm not optimistic. Arguably, many who voted for Trump would be no more forthcoming to researchers than they were to those doing the election polling. There's just too much polarization, I suspect.