While this is more of a third-party software than a real mod, it's worth noting that you won't have to compromise with it when playing Elden Ring on ultra-wide monitors, even though they're not officially supported. Ultrawide UI Fixes addresses this issue and also includes other useful options.
User Interface 
Makes scuffed, sorta small tweaks to make the HUD more compact and less intrusive.
Removes unnecessary HUD elements and moves many HUD elements away from the center of the screen. Many options for customization.
Greyscaled Ui minus the icons HP FP and ST bars which are desaturated with a filter to fit better with the grey.
Removes the startup BN/Fromsoft logos. Nothing like getting blinded right as you close the game.
This mod patches the internal texture layout files for Elden Ring to use Dualsense or Dualshock UI for buttons prompts and gamepad (settings screen).