Thanks! Checked the GPU benchmarks and it seems the 4070 Super should be enough as a starter card. And 4070 Super is suggested across the internet as well, so should be fine. Maybe 4070 ti super for that extra 4GB VRAM (16GB total), but that adds ~200-300 EUR.
And yeah, Ryzen 9 would be better for productivity. Probably will go with 7900X (12c/21t, double chiplet, 4.8Ghz (5.6Ghz boost)) over the Ryzen 7 7800X3D (8c/12t, single chiplet, 4.2Ghz (5.0Ghz boost) (which is/was one of the best gaming CPUs).