The game is preventing you from playing with both keyboard + mouse and gamepad since it can be considered cheating. This can appear if you merely have your controller connected to the console or installed as a device.
From personal experience, you cannot natively use a Keyboard and Mouse for Remote Play, only a PS4 controller (or alternatively a PS Vita/PSTV).
The Steam client now officially supports the Switch Pro Controller, with it previously only being available in the beta client. This gives you the ability to use it with all of your PC games and even remap its buttons, should you see fit.
0:294:37Nintendo Switch Pro Controller Set Up Manual – YouTubeYouTube
0:3212:30Fallout 4 (Updated Controls) + Steam Controller | Playtest & ImpressionsYouTube
Fallout 4 Guide. V.A.T.S is a special system that allows you to aim. Pressing the button which activates this mode will greatly slow the time and allow you to aim at any part of enemy body after selecting the attack sequence.
Your game may crash for several reasons, such as incompatible hardware, improper game settings or video resolution, corrupt graphics card driver, interference from antivirus software, and more. … If, unfortunately, the PC doesn’t meet the system requirements for Fallout 4, then you’ll need to upgrade your hardware first.
The Best Builds For Survival In Fallout 4, Ranked 8 Loner. 7 Manifest Destiny. 6 Pain Train. 5 Explosive Paladin. 4 Power Slugger. 3 Walking Tank. 2 Powered Black Ops. 1 Infiltrator.
Fallout 4 seems to offer native support for the PlayStation 4’s DualShock 4 controller natively on the PC in Windows 10. You’ll be able to plug in the DS4 into your PC and the game will detect it without needing any additional software. … DS4Windows includes a built-in way of . . . Read more
Interestingly, the requirements listed on Steam mention that a gamepad/controller is recommended for Fall Guys. When it comes to whether you prefer to play with keyboard and mouse vs controller, it opens up very passionate and informed options from both sides of the coin!