When I go to review a PR that cannot be purely evaluated on the code, I click this link:
I've found that to be the most seamless way to check out the branch and give the working app a manual look-see. Otherwise I use the git CLI, but I've found this to be my favorite way so far.
But it seems off to me. I have this app running all the time for this singular purpose. It also seems off because I have to scroll all the way to the bottom of the page and click a text link. If this were the appropriate behavior, it would make sense to me that this button would look a lot more like the "Squash and Merge" button next to it.
I know this has worked for me, but I'm just curious if I'm missing something.