We use Nomad where I work and we LOVE it. Previous to Nomad we used K8s for several years which, at that point, allowed us to become cloud agnostic. With the move to Nomad about 3+ years ago, we were able to transition away from cloud and back to leased, bare metal machines. During our time with K8s, it didn't have a good bare-metal strategy with their ingress mechanism. In contrast, as we investigated Nomad, it was easy to deploy on pure metal without a hypervisor. The result of our migration to Nomad was having so many capable and far-less-expensive hosting options. Lastly, as part of our Nomad control plane, we also adopted Vault and Consul with great success.
I know there are horror stories around this acquisition and lots of predictions about what will happen, but only time will tell. On a minimum, it has been a delight to use the Hashicorp software stack along with the approach they brought to our engineering workflow (remember Vagrant?). These innovations and approaches aren't going away.