The CTO at a client of mine has spent over 1 year trying to deploy ~7 web services to k8s, hired 5 contractors to help and they still don't have a stable deployment.

I informed them my team could do it all in under two days using Terraform + AWS + EBS. Unfortunately, they didn't take us up on the offer.

Sunk cost, etc.

I've never seen a company use k8s and not end up with a giant expensive team maintaining it all.