It does not work with kernel 6.12 or higher for me in Manjaro: most of the time i got black screens after boot, once, fiddling, it seemed to work but with a low resolution screen and artifacts on the window frames and the bottom bar.
If it helps Debian SID seems to have some new patches: up to kernel 6.14:
https://metadata.ftp-master.debian.org/changelogs//non-free/n/nvidia-graphics-drivers-legacy-340xx/nvidia-graphics-drivers-legacy-340xx_340.108-25_changelog
It does not work with kernel 6.12 or higher for me in Manjaro: most of the time i got black screens after boot, once, fiddling, it seemed to work but with a low resolution screen and artifacts on the window frames and the bottom bar.
If it helps Debian SID seems to have some new patches: up to kernel 6.14:
https://metadata.ftp-master.debian.org/changelogs//non-free/n/nvidia-graphics-drivers-legacy-340xx/nvidia-graphics-drivers-legacy-340xx_340.108-25_changelog