I'm using a 10 years old Razer Blade Stealth 13 on Debian and so far no only minor problems with it.

Consequently my advice is :

• do you actually "need" a new one or do you just "want" one? if the later then could be 2nd hand
• if you do then share either what your "main game" is or what its requirements are, because e.g Slay the Spire runs on nearly anything
• do not buy something brand new unless you are ready to tinker, consider something a year old
• whatever you do, check online review specifically on Linux installations, that will let you know if something somehow (typically inconsequential, e.g. LED tweaking) requires proprietary software
• consider buying directly from a Linux pre-installed vendor, this way you are 100% sure it will work (but it's typically not cheap)