I had a RX470 and now have a GTX1080FE now - I downloaded the driver and installed it for both cards.
Both worked fine. The same with every single mate of mine,many of who are not computer enthusiasts - they installed their AMD/Nvidia card with no problems. None of them are teenagers!!
If you have a problem installing a card and downloading a driver and pressing the install button,well the PC is not really a good start,so if you lack time,etc a console just makes more sense.
I have been a PC builder for close to 15 years,and if you had a penny for each time every side has talked up how much better their drivers were,I would be a millionaire,and after owning dozens of ATI/AMD/Nvidia cards and being quite a lazy enthusiast,9.9/10 I have had not an issue with either side.
The only time I have had issues(which have been very rare) is when ATI/AMD/Nvidia push out a driver too quickly before testing and you saw the ATI/AMD/Nvidia driver threads and websites moaning about it.
Edit!!
That does not include the fact Steam and Windows also looks for driver updates too,on top of things like the Geforce Experience and the AMD driver stack.
Second Edit!!
I am talking about single card setups - I only know one person who had dual card setups from AMD/Nvidia and he got fedup with them as more and more games seem to not scale as well anymore.
But as AT said a few years ago,that is due to the consoles.