Nah - I meant - if you are new to Linux - an old laptop with nvidia may prove difficult to get working - but if you are up for the task because you love challenges - then you should barge on …
The problem is the nvidia driver no longer available - unless of course you build it yourself.
As I recall it the removal of 340 is fairly recent - perhaps 12 make that 24+ months.
The archive on osdn may provide you a more recent working ISO - then you can take it from there.