[ethbr1]

I think it's less about strengthening a monopoly and more about zero sum business models.

If AWS/Azure/GCP/et al. ran a cloud version of X and the main company supporting the open source project was a going concern, I doubt many would have a problem with the entire scheme.

However, in reality, every enterprise support dollar that goes through a third party cloud-managed offering is one that doesn't go to the first party.

In which case, what dollars are left to pay the independent company that creates and supports the software?

Granted, there are a lot of nuances to the above, but I think it's generally fair to say that third-party cloud companies are making more off managed open source offerings than they're paying to contribute to them.