Some people's planet is graphics-only, and for them AMD is a great choice.
AMD is pretty great on Linux so long as you only ever want graphics. Once you want anything else out of their very-good-on-paper hardware, the experience starts to break down. You have to manually install/uninstall/reinstall their ever-shifting compute driver(s) and which driver you install (and the cadence at which said driver is updated, particularly for newer kernels) depends heavily on the device you have. E.g. I have a 5700XT and W5700, very similar hardware, yet supported by two very different drivers (I'll let you guess which one lags much farther behind - hint, it's for the more expensive card).
In contrast, Nvidia's driver has essentially always worked - I install the same driver on all my systems, and it gets updated frequently enough that it's always compatible with the current Ubuntu kernels. Over a dozen or so machines (personal, not counting work) over the last ~15 years, I've only encountered one or two serious issues with the Nvidia driver stack. Compare that to ~5 AMD machines over the last ~6 years where I've encountered at least one major issue per machine each year with the AMD driver stack.
AMD is pretty great on Linux so long as you only ever want graphics. Once you want anything else out of their very-good-on-paper hardware, the experience starts to break down. You have to manually install/uninstall/reinstall their ever-shifting compute driver(s) and which driver you install (and the cadence at which said driver is updated, particularly for newer kernels) depends heavily on the device you have. E.g. I have a 5700XT and W5700, very similar hardware, yet supported by two very different drivers (I'll let you guess which one lags much farther behind - hint, it's for the more expensive card).
In contrast, Nvidia's driver has essentially always worked - I install the same driver on all my systems, and it gets updated frequently enough that it's always compatible with the current Ubuntu kernels. Over a dozen or so machines (personal, not counting work) over the last ~15 years, I've only encountered one or two serious issues with the Nvidia driver stack. Compare that to ~5 AMD machines over the last ~6 years where I've encountered at least one major issue per machine each year with the AMD driver stack.