No. In Apex Legends only controller players get aim assist. On PC, Apex AI gives mouse and keyboard (MnK, KBM) players AI aim help.
Respawn has changed aim assist strength several times. Controller players on PC and on console both get it; mouse and keyboard players get none.
Make sure the game sees your controller as your active input. Aim assist never works with mouse and keyboard, even on the same PC.
Apex has aim assist for controllers, not auto aim. Apex AI finds enemies on screen and helps you lock on, with mouse or controller.
No. Aim assist is built into the game for controllers. Apex AI is an AI aimbot: it finds enemies on screen and helps you lock on, also with mouse and keyboard.
Any third-party tool breaks EA's rules, so there is always some risk. RuinerLabs has served 5,000+ players since 2020 and no customer ban has been reported.