Apparently I am pretty lucky. My managers are explicitly asking me to help rescue a project AND get the dev who did most of the work upskilled and following some of our patterns from some other successful projects. It is hard to know whether they are actually taking my advice and changes to heart and integrating them into their knowledge base and mindset, or just accepting that they're being asked to make changes by me and doing them.

Mentorship is hard, regardless of management buy in :/