From the feedback that I have gathered, one thing was unanimous - absolutely nobody liked the default mouse aiming system.
This has now been remedied to a control scheme that people requested, namely a visible mouse cursor or "aiming reticle" which the player rotates to. The larger the distance between the cursor and the player's facing direction, the faster the player turns. This also now works for gamepad and Steam Deck control, as all control types turn at the same rate, so no one scheme has any disadvantages over the others.
You can swap control between Keyboard+Mouse and Gamepad input at any time in-game, via the pause and options menu.
If you're playing on Gamepad and suddenly lose input because your mom is bent over hoovering infront of the screen and accidentally pulls it out, the control system will default to KeyBoard+Mouse, and the game will pause (unless in online Co-Op Multiplayer). Once you plug your Gamepad back in you can choose Gamepad input again from the Options Menu.
And if you're on Steam Deck you will notice absolutely no changes.