just google "custom laptop europe"
https://www.skikk.eu/en/laptops/17gknp
this one configured with 16x2 gb ram and a 1Tb Samsung 970 Evo is 1250 eur
there might be better deals out there or mby you want a better gpu to play some games. gtx 1650 can power 4k monitors so if you're not going to game, that's all you need really
look for a Ryzen 7 4800H/4900H or a Ryzen 7 desktop cpu 2700x/3700x
32gb ram in dual channel (2 sticks)
nvme ssd
don't pay 100$ for Windows, can get a key for 10$ online and simply download W10 from Microsoft's website, they have an easy to use software that will put it on a bootable usb stick for you