How to deal with coworker code review who haven't read my code?

> I then have to go out of way my to prove to this person the code is doing what is expected/asked, either in long winded responses on the PR, or sometimes as far as pulling them into a video call to screen share and live debug the code to them

Process issue. Fix:

1. Write tests

2. Ensure tests can run in a well defined/containerized environment so that they can run tests and ensure they pass

I don't have answers but some questions that might help:

* Are their code reviews _of you_ poor in particular, or are they poor in general when reviewing anyone's code?

* Are they reviewing your code in good faith (and are just finding it challenging) or in bad faith (and can't be arsed or don't like you / the project / etc)?

* Have you had a direct conversation with them about it? (Is your relationship with them strong enough to enable that?)

* Do your team have standards for a code review? Expectations for an author and for a reviewer?

Your code may be messy or written in a non-obvious way. Does your coworker occasionally suggest how your code could be improved? Do you take those suggestions to heart?

I hate that. I prefer an environment that enforces individual responsibility. I'll push through your code without much review so you need to own your code and make sure everything works.

I would at least consider talking to the co-worker's boss.

Barring that... is there any way you can route your PR reviews to someone else?