File editing is required to change it. Agree, they should know better and add a slider. Anyway, to change it you need to hunt down the user.cfg file which should be somewhere like C:\User\yourname\Saved Games\metro exodus\xxxxxx\user.cfg.
Once opened in a text editor, look for the following entry which will need tweaked.
You will probably have to mess with these for a bit to get it to where you want the FOV. Apparently, it used vFOV so you may want to try a number starting at around 70 but don’t push it too high because weird stuff will likely happen 🙂
Other settings to check for motion blur are.
Setting these to zero might be an idea.