https://wccftech.com/heres-how-to-get-amd-fsr-running-in-any-game-using-lossless-scaling-tool/

AMD FSR, FidelityFX Super Resolution, can now be added to virtually every game using the latest Lossless Scaling tool. Developed by Hybred (a former game developer for Ubisoft), it is stated that the new tool delivers better image scaling and, does not suffer from stuttering and input delays in games.

The benefits of being Open Source for AMD FSR (FidelityFX Super Resolution) can already be seen. The technology has been incorporated in several games at a much faster pace than DLSS and devs are working round the clock to get it implemented in other titles through specially built tools.