Data collected from Oct 6th, 2023, until today. All data collected by me.
Applied to 61 job offers on different sites (LinkedIn mostly, but also some minor Spanish job sites). All of them were for Django or Python backend developer (asking for Django, FastAPI or Flask), mostly mid/senior level, but some of them even were for junior level, just in case.
As a manager, I won't ask for code by the time someone is in the interview, but I'll read anything shared/linked before that. Usually, that's a GitHub link toward the top of their Resume/CV.
I would say that during the interview is too late to share source code, but one candidate brought in a big binder full of source code. It was a good interview. I read their code and asked them questions about it. It was bad code (as lots of "good enough" code is), but they actively engaged in a discussion with me about how it could be improved. I hired them.
Edit: I'll always read a candidates source code if I can find it. Linked from your website might be too subtle for me on a busy day, though. Depending how prominent your site is on your CV, and how prominent your code is on your site.