Seems like you lucked out, because this never really happened for me. I wish this was the case! I have a ton of half-finished projects I could show instead of doing tests.
Something people often miss is that it's not enough to just link someone to your GH profile. If it's full of half-finished projects, they will likely look at your pinned ones (if you have those set), and not bother with the rest. The crucial thing is linking them directly to specific files of a project, specific PRs and contributions, that showcase the value you can bring. This makes the job much easier for the other side, while highlighting your strengths.