In a conversation with WCCFTech, Midgar Studio's Jeremy Zeler-Maury discussed the differences between FSR and DLSS in Edge of Eternity, one of only two games that currently implements both upscaling techniques.
https://www.notebookcheck.net/Edge-of-Eternity-JRPG-developer-talks-about-DLSS-and-FSR-implementations-highlighting-the-strengths-and-weaknesses-of-both.548837.0.html