This is really odd, I’m Polish and I use Google in both English (80%) and Polish (20%).
It’s been as good as ever. Never noticed anything being off or inaccurate. I don’t understand all the hate.
On the other hand DGG, for example, is barely usable in Polish and quite crappy for English queries as well. I’m comparing those two actively and have been for the last couple of years as I really want to ditch Google, but can’t. It’s still miles ahead of competition.