I use the GitHub Pull Request extension in VSCode to do the same thing (reviewing code locally in my editor). It works pretty well, and you can add/review comments directly in the editor.
Well my employer chooses to use GitHub so I don’t have a choice there. And it’s vendor lock-in VSCode but that’s already my primary editor so it means there’s no need to learn another tool just for code review.
I use this a lot too. Also, if you open a PR on the GitHub website and press the “.” key, it opens the review in VSCode, which I consider a much better web experience.
Same! Its much nicer now especially since Github seems to be pretty arbitrary/rigid about when it hides files that have "too many changes". Its so much nicer to see/navigate around such changes quickly in VSCode vs trying to do the same in the web interface.
I suspect that since this is possible with VSCode/Github, its probably extensible to other providers editors.