Add keyboard and mouse to Xbox and PS4 (and when you plug in your keyboard and mouse it automatically places you with keyboard and mouse players so it's fair) : r/apexlegends
CHEAPEST AND EASY WAY TO USE MOUSE & KEYBOARD ON APEX LEGENDS PS4 (2021)
GAMWING for PS5 Mix PS4//Switch/Pro Apex Keyboard and Mouse Portable Conver L3F6 | eBay
Vivefox One Handed Mechanical Backlit Gaming Keyboard and Mouse Adapter for PS4 PS3 Xbox One N-Switch Window PC Game Console Support Call of Duty Modern Warfare Overwatch PUBG Fortnite COD : Buy
Apex Legends With Mouse And Keyboard On PS4, Xbox One – WEBEEQ Blog