In my specific situation, I cant really use UserInputService so i was thinking whether i could use mouse.Move(). The wiki didnt mention it but it does that a lot.
https://developer.roblox.com/api-reference/event/Mouse/Move
This Article from developer.roblox.com shows no signs of deprecation stated on the Event. So No, Mouse.Move() Is not deprecated but it is reccomended to use UserInputService as a better alternative.