Re: Better late than never…
This should be a slam-dunk case that needs no more than a month or two's "investigation". The evidence is clearly visible and has been for years.
Microsoft should be fined through the nose for it, because they're taking ongoing revenue from businesses that migrated to Azure rather than AWS or GCP when Azure wasn't the best technical fit, but was - artificially - the only viable commercial fit. I know of several organisations that would vastly have preferred to move to AWS or GCP but went to Azure in the end because that just couldn't make the numbers work from a licensing point of view in the short to medium term, even if their long term goal was to eliminate Windows and SQL Server from their estate.
The consequential profits Microsoft are making through this effectively illegal lock-in should be confiscated on an ongoing basis, and used to fund grants for affected businesses to migrate off Azure back to on prem or to another cloud vendor should they so wish.
The damage has already been done, and is ongoing, and not easy to reverse. A one-off fine won't remedy their illegally gained market share.