I've never trusted the Azure installable apps; so many look dodgy or unmaintained. Even their "official" email integration with Sendgrid is a joke; really disappointing.
I think GCP could do well here to offer a K8s namespace that these apps could be installed into in a really standard way, just using the same Helm config that they might offer elsewhere. That way it would play into Google's strengths as the K8s expert, as well as giving GCP more high-quality apps, and many more apps would have Helm charts with really good defaults.