Pulling and at least trying to start the program when reviewing new hire code is fairly common for me. I don't know what is, maybe a lack of experience, but I find newer programmers just assume their code works without trying it.
You should always try your code. I've probably sent back hundreds of PRs because they just won't even run.
But I always send them back. They do learn, it just takes time.
Looks like you can follow entire lemmy communities right in mastodon. I followed @programming and all posts to that community are showing up in my feed.