When the HUD is disabled using either the key binding (default is long-press tilde) or via the game options menu, the UI still shows a vehicle controls HUD when inside a vehicle.
In both cases (i.e. menu and key disabled), when the player exits a vehicle, a partial HUD comprised of the stamina and noise indicators is displayed. This partial HUD is easy to miss and reapplies each time the player exits a vehicle.
This breaks immersion for players who are filming cinematics or players and/or streamers who want a clean HUD.
Resolving Partial Hud:
- If the partial HUD is displayed as a result of the HUD being disabled via the key binding, it can be cleared away by pressing the key twice (long-press tilde) or even toggling the game settings (Esc).
- If the partial HUD is displayed as a result of the HUD being disabled via the options menu, it cannot be as easily removed. The only way to remove it in this case, is to force the game to "refresh" its options. This can be done by making and applying a change in the options menu The change does not have to be related to the HUD. Any change to the audio/video/control/option setting will do as long as the UI enables the "Apply" button. Once Apply is pressed, the UI refreshes properly and the partial HUD goes away.
It will likely be helpful to watch my linked unlisted YT video. I made it while getting over the flu so please excuse the sniffles and raspy voice...