feat: NVIDIA fix only for RTX 20 series or newer, with the VRAM booster's chwd legacy check (vram_nvidia_legacy_id)

CHANGELOG.md

@@ -12,6 +12,7 @@ one per merged pull request.
 - **fix: NVIDIA fix on Limine edits the KERNEL_CMDLINE[default] line (an appended += line ended up as literal text on the kernel command line, found in a VM); the modules are only loaded early when every installed kernel has them, and a Limine boot entry without the parameters is an error**
 - **test: tests/nvidia-hardware-test.sh for a real NVIDIA PC: check (read-only state of the detection, the live nvidia_drm modeset/fbdev, versions), apply, and visual (was the gaming mode picture clean), with a report file to paste**
 - **fix: the NVIDIA modules are loaded early only while every installed kernel has them, decided again at every kernel or driver change by a pacman hook (steamify-nvidia-initramfs): a later kernel without the modules (another kernel, a failed DKMS build, a downgrade) no longer makes its initramfs and Limine boot entry fail**
+- **feat: the NVIDIA fix is only for RTX 20 series or newer, decided like the VRAM booster does (vram_nvidia_legacy_id: chwd's legacy card lists); older cards are left alone**
 
 ## 2.9.6 - 2026-09-30