Thanks for the feedback!
The 430 driver is actually the recommended one you find when searching for Linux drivers for your GPU. That means there is something wrong here, I’ll notify the right people.
Regarding the driver installation itself, reread my last bullet-point above.
And then check 390.157 driver no longer works with kernel 6.5+
You try to run kernel version 6.8, probably Ubuntu 24.04? That will simply not work.
I am sorry.