This is bad news for AMD. Freesync screens were far more numerous and far cheaper than Gsync screens, despite Nvidia boasting some 70-80% of the gaming video card market. So, there would have been people who liked the AMD side because they could actually afford a screen with adaptive sync. Furthermore, if they already had a Freesync screen, they would be somewhat more likely to stick to AMD. Nvidia's decision to support only their own Gsync this long is because they had such a giant market share and maintaining the strict policy brought them money directly from screen manufacturers who wanted to have Gsync. But practically speaking they were voluntarily limiting themselves out of some potential market, so this move was something that could have happened at any time. Ironically enough this turned the tables because now Nvidia video card owners can use great many more screens, but there's no way for AMD to support existing Gsync screens. But at least Gsync screens will most likely become even more scarce in the future. However, a screen can work for many years.