Are they some graphic card benchmark for linux environment ? From my windows experience, drivers are important, and often underestimate. My linux gaming experience is very bad, lots of my game are unstable, and others use a lot more resources than with windows. However, when I ask people, some of them have no issue at all, even with a similar environment (Debian + Steam). I may consider buy specific graphic card to stay on linux, but I couldn't find any clue to know which one are more adapted.
Thx for your leads !
Worry less about benchmarks, and more about stability, compatibility, configurability, and sanity. Amd should be your first choice, then Intel Arc (may see some performance issues, but easier than Nvidia at this point), then Nvidia as an absolute last resort.
AMD and Intel open large parts of their drivers to be included in the mainline kernels releases and tertiary support packages which drive graphics in Linux, so any fully featured kernel will support either right out of the box, with no fiddling needed. You can tweak the drivers and overclock stuff as well if that's your jam.
Nvidia doesn't do any of this, and only allows individual installs of it's proprietary driver on a per-kernel basis. To simplify, you'll have issues getting it running under almost any conditions aside from a very Vanilla LTS install of a distro from a year ago unless you get REALLY good at doing the dance with their terrible package management issues and DKMS compilation craziness.