Microsoft is working hard to fix a lot of the problems e.g. connection scalability [1].

[1] https://techcommunity.microsoft.com/t5/azure-database-for-po...

That's great. Connection scalability is my biggest issue with Postgres currently. It sounds like they work on it in by commiting directly to Postgres and not only to CitusData.

They're investing rather a lot into Postgres; it's great.