in Documents/MyGames/Starfield create a text file and name it "StarfieldCustom.ini"

inside the text file, add this:

[Camera]

fFPWorldFOV=100.0000
fTPWorldFOV=100.0000


The first line changest the first person fov, the second changes the third person

After you're done creating and editing the file, right click -> properties. Check the Read-only box to prevent the game from resetting your fov

please note that Your folder location for Starfield.ini MAY vary depending on your filesystem configuration; you can try checking under C:\Users\$YourName$\OneDrive\Documents\My Games\Starfield



i tested it myself, works perfectly!