Using a GPU under Linux is not common? And installing Linux on old laptops isn’t either?
Installing drivers for an older GPU, obscure printer, touchpad or other weird hardware is not common.
When I installed an Ubuntu variant on my G580, which has a Geforce 635M it automatically installed the current driver for Geforce GPUs when I setup the OS, but that driver doesn’t support the 635M. That one needs a legacy driver. And getting that to work was a major pain.
Which is an issue with Nvidia, they have no drivers for that GPU for Windows 11 either. Not saying that this is not an issue but there is absolutely nothing Linux can do to make every legacy GPU work without help from Nvidia. It uses the open source driver out of the box, which works sometimes but not for everything and definitely not for gaming.