Basically for games that only support DLSS, it’s long been possible to replace the DLSS files to force the game to use FSR 2/3 instead. It’s a pretty common mod available for many games on Nexus mods.
Sometimes it works well, other times you get weird blurring or other effects.
This is an interesting-development deck plugin that will greatly simplify the installation of these mods to games, letting us benefit from FSR upscaling and frame gen in DLSS only titles.
ooooh how very exciting! will keep an eye on this. i run DLSS on basically everything. wonder what will be better.