One thing that does get a mention but only right at the bottom of the post is using smaller base images (e.g. Alpine).

If you can I'd recommend this as a good practice to reduce these kinds of problems. The fundamental fact is that if you don't have a library installed, you can't be affected by a vulnerability in it. So the smaller your image, the fewer possible avenues for shipping vulnerable libs you'll have and you'll have to spend less time re-building images with updated packages.