I attended a conference at Cisco in Rolle, CH. It was a conference mainly for system architects and system administrators. To make it short, at the conference, they presented their product; Cisco Container Platform.
I had never seen a comparable product that could be self-hosted. Their container solution works with Kubernetes.
At the beginning, we used physical machines to store an operating system, then several virtual machines on a physical machine. Now, we use a physical machine that hosts a pool of virtual machines hosting containers.
We started a POC at work, impatient to see the results.