This is a cliched reply that would be appropriate a few years ago.
Nowadays, I've found that I can install Ubuntu on more laptops and desktops and get better driver support from the initial install than even Windows can in many cases.
With Windows, I've had to scrounge around for drivers and pray they're compatible with Windows 8 Professional 64bit Premium Plus Bonus edition on the same laptops.
No official Google Drive[0] support (but we do have Dropbox)
No official Garmin Connect[1] support
All in all, that's not bad. All monitors, ebook readers, mp3 players, cameras, printers, wifi, mice/keyboards have all been perfect out of the box for years (for me).
The only thing that really annoys me is that the Google Nexus 7 (and apparently all other Android 4 devices) use MTP now, which is still kind of a hassle to get working reliably.
Apart from that I totally have to agree with you - even the proprietary graphic card drivers haven't given me any real problems for the last 2 years.
There is a Google Drive client (just unofficial). And that is completely unrelated to Ubuntu and GNU/Linux. That is Google's fault for not caring about GNU/Linux.
I'm not sure if I agree with your finger pointing. Because it doesn't matter whose fault it is. Lack of graphics card drivers, printer drivers, etc were always the fault of the vendors, but users don't care about that. They just don't use Linux because "my printer won't work" or "it's a hassle to setup my printer".
But, again, all of this isn't much of an issue anymore.
(Also Google loves Linux and particularly Ubuntu. I'm not sure why they are dragging their feet on Google Drive but it's not because they don't care)
Ubuntu doesn't have the market share to justify vendors allocating resources to develop drivers for it. Not sure how that puts the vendor at "fault", it's just simple economics.
Nowadays, I've found that I can install Ubuntu on more laptops and desktops and get better driver support from the initial install than even Windows can in many cases.
With Windows, I've had to scrounge around for drivers and pray they're compatible with Windows 8 Professional 64bit Premium Plus Bonus edition on the same laptops.