We previously reported that the modder was able to embed NVIDIA DLSS, AMD FSR and Intel XeSS image upscalers into The Elder Scrolls V: Skyrim. In the future, the mod is planning to release similar mods for other games, and for now you can take a look at what he has done with the 11-year-old Skyrim.
DLSS and FSR can be used not only for upscaling, but also for image smoothing. It was recently revealed that HoYoverse installed FSR 2 in Genshin Impact as a smoothing method alongside SMAA. For amateurs, installing a bunch of graphics modes DLSS, FSR and XeSS can be a very attractive solution.