Everyone in the American IT world has been trying to leave Microsoft and Google for decades. In that case, the problem isn't IT push, it's that users refuse to learn new software. I can guess it's the same in Europe.

It's maybe harder in Europe, because you also have fragmentation. For example, Californians are fine using software from New York. Same, same. But Germany prefers to use German software, so far. This makes it even harder, I would guess, for EU developers to establish a thriving standard.