Is varnish purge still being maintained?

I contacted the 4 maintainers.

Yes, the module is still maintained. Slow, but still :)

@MiSc, thank you for your answer and effort for the module.

It would be great to have a look at 📌 Automated Drupal 10 compatibility fixes Fixed since that issue tries to fix Drupal 10 compatibility.

I missed that was marked as "Reviewed & tested by the community", so thank you for that. I will look into that at the latest tomorrow.