Well an example would be video editing. Radeon VII would be better than a RTX2080ti because it has HBM2 and not GDDR6X
AMD has always been stronger for mining due to how the card architecture handles ASYNC compute
nVidia might get the highest FPS in some games but it has not and probably will not EVER be the best in terms of value or FPS/Dollar
AMD drivers are built into the kernel in Linux and have a real and genuine open source option. nVidia linux drivers are comparable to Windows performance but are closed source, and the open source alternatives suck ass.