They are so identical, there's code in the GitHub runner to search and replace "Azure DevOps" with "GitHub Actions" in log output on the fly.

The entire code is a wonderful mess. We found that when we early-adopted ephemeral runners, that the control flow is full of races and the status code you get at the end is indicative of exactly nothing. So even if the backend is just having a hickup picking up a job with an obscure Azure error code, you better just throw that entire VM away, because you can't know if that runner will ever recover or has already done things to break the next run.