The issue is not lack of european providers. The issue is almost natural lobby from the likes of Microsoft and Amazon.
All the unis are infected with former corpo programmers who push their preferred employer stacks. Students get free credits to use on Azure. Some of them become gov employees or consultants. You end up with all sides agreeing Microsoft Azure is the most trustworthy solution.
Everything gov in my country seems to be built with asp.net to point where its often requirement in the contract.
Lets start with erasing all the proprietary tech taught at universities. Microsoft can do their education. Universities dont have to do it for them for free.