[gaahrdner]

Is there a middleground?

Perhaps standardizing on something like Terraform allows you to reduce the risk of going all-in on one vendor.

Similarly with Kubernetes; if you go all in on k8S, do you care where it's hosted or can you maneuver quick enough to the best provider?

[seabrookmx]

This has been my company's approach. There's always going to be some provider specific stuff you have to deal with.. The networking has been a major difference between clouds I've noticed. But I'm guessing in most cases our Helm charts would deploy unchanged Toa different provider.