I don't know, if AMD had this feature I bet people would be raving about it, there seems to be a large portion of people that dislike everything to do with RT, which strangely includes DLSS, you would hope the pressure on developers to implement this feature would be extremely high given the performance uplift but many don't seem to care. Could also have something do with nvidia's 20 series pricing forcing users to looks for cheaper alternatives, 30 series availability, or even the old AMD bias which still seems to inflict some users.
If developers favour AMD / nvidia hardware to the point of ignoring features like this, while delivering a sub-par performance experience then I won't buy their game.... Maybe buy it on sale or obtain through other means, try before you buy is still my policy for games where possible.
Its allways the same with anything nvidia bring to the table its for nvidia gpu's only.
dlss 2.0 is very good in the very few games that support it. and i think every game sould have it in But not everyone wants to add and work with nvidia to implement a feature. the extension for the engine might make it easier for them to implement.
i felt that g-sync was a good addition to nvidia's gpu but the sheer price increase to buy a monitor and being locked into nvidia ecco system. amd brought out freesync which was a open standard and nvidia even adopted it into there drivers which opened up a very good tech to everyone with no real price increase for a module in the monitor.
i bring up g-sync freeesync because i feel the same will happen again. the leaks coming out about amd version of dlss and using microsoft standard ml (if the leaks are true) will bring DLSS and amd version to the forfront. whilst i dont think amd version will be as good as nvidia and i cant see it being totally in every game like amd has said. BUt since nvidia can also use microsoft ML also on there RT cores i can see a hybrid way going forward for devs.
for DLSS or microsoft ML to be used to full effect both amd and nvidia and consoles all need to push it forward. I can see a big uptake once amd version is out in the wild