Blender and DaVinci Resolve work better on Nvidia. AMD might work, but it will be a hassle and you'll likely need the proprietary AMD drivers anyway.
With Nvidia supporting Wayland and the open-source NVK continuing to get better, you could even switch to open source drivers for gaming at some point, if you prefer.
Edit: I've had enough issues with AMD GPU's clocking down while gaming, leading to micro stuttering. So don't buy AMD just because everyone tells you they work flawlessly.
For CPU and mainboard, everything works well — just don't buy a random unknown SSD from Amazon, then you're asking for data loss and random issues.