I have an HP Omen with Nvidia GPU. Even with Linux it’s works great! It has dual RAM slots, 2 nvme slots and the WiFi card is also changeable. The fans are loud, though.
HP Omen or Victus are good options.
But if I were to buy a new laptop, I would buy something that’s fully compatible with Linux and FOSS.
Someone suggested Framework, that’s good. Or if you are in Europe, check out Tuxedo as well.
One thing I would like to advice with laptop GPUs that same GPU model does not mean same performance. Get TDP numbers and if possible clock speeds. When I was buying the one I have, some rtx 3060 models had only 80 watt of TDP. Mine has 100 watts of TDP. So, my rtx 3060 performs better than most rtx 3060 laptops out there.
It’s like Jellyfin but with a red UI.