Starfield Is Getting DLSS, FOV Slider And These Other Missing PC Features
Well, all of the above are apparently coming to Starfield in future updates. Don't be confused; Bethesda's first patch is a "small hotfix" that is aimed directly at some "few top issues" the developers have discovered with the game—some stability issues and a few progression-stopper bugs. These other changes are coming in later updates that will be delivered at "a regular interval" apparently.
On the topic of mods, there were in fact already community mods to replace the game's built-in FidelityFX Super Resolution 2 upscaling with DLSS, but it looks like you won't have to mess with any of that soon. While FSR2 upscaling is better than most methods, DLSS offers superior temporal stability. It can't help much with the loss of distant detail caused by reduced render resolution, but it's a lot nicer to look at in motion.
No word on whether Starfield will just be getting DLSS Super Resolution or whether it will also gain DLSS Frame Generation support, but we suspect the latter is likely. If modders can get it working within days of release, it can't be that difficult to implement. There's also no word on Intel's XeSS, but that one's been modded-in, too. If you're playing Starfield on Arc, make sure to go grab that along with the latest driver updates.