How would campaign contributions help in the EU? The people they would need to pay off are all unelected judges and prosecutors. The elected officials do not how much power to affect anything.
But I'm not sure if they've stayed with Linux or returned to Microsoft in the last 8 years... EDIT, according to https://en.wikipedia.org/wiki/LiMux#Timeline, in 2017 some politicians said they're switching to Windows 10 by 2020, in 2020 other politicians U-turned on that decision.
