Game launches into 'Windowed' mode, Not Full Screen ?

Product: Apex Legends
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number RTX 2060
Enter RAM memory size in GB 16GB
What is your gamertag/PSN ID/EA Account name? Pixiethebassist
Please provide your squad mates' gamertag/PSN ID/EA Account name if possible.
Which Legend were you playing (if applicable)?
Which Legends were your squad mates using (if applicable)?
Where did the issue occur? In the lobby (waiting area before the match)
Which part of the map or menu were you in? If you don't remember the exact name, please describe the area or what you were trying to do in the menu. Booting in to game
What were you doing when the issue occurred? E.g. respawning a squad mate at a beacon, using an ability, a squad mate left the game. Booting in to the game from the origin launcher
Did your squad mates also experience the issue? Yes
How many matches had you played in a row before the issue occurred? 0 happens on launching game from origin.
When did this happen? (dd.mm.yy hh:mm) 06/02/2019
How often does the bug occur? Every time (100%)
How severe is your issue? Little to no impact to gameplay
What happens when the bug occurs? Each time I load the game from origin it is in windowed mode and I have to manually change it to full screen. It wont remember this setting and launches the next time as a window. Not Game breaking but very annoying.
What should be happening instead? Settings for the game to be full screen should be remembered.
Steps: How can we find the bug ourselves? Unknown

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Each time I load the game from origin it is in windowed mode and I have to manually change it to full screen. It wont remember this setting and launches the next time in window mode despite me applying full screen. Not Game breaking but annoying.