Sure, but that's nothing new. Russia has always been investing into domestic alternatives, even going to great lengths to build their own CPU architecture and such. But they've been a sworn enemy of the West so that's nothing surprising, and neither is China doing the same. The EU so far was considered firmly in the sphere of influence of the US, which is why this development is interesting.
Right - but American sanctions have a big effect. What happens when that power goes away? Who is going to sanction Russia?
You can complain about well America is sanctioning countries I disagree with, but it also affects countries you would agree with. When we don't have sanctions power perhaps military force gets used more.
Regardless of what happens both the EU and America are still within each other's spheres. That's not going to change anytime soon. We've gone through much worse.