I’m new to the engine (and game development) and I want to use SG Unreal Creation’s Third Person Shooter Tutorial but It’s 7 years old. And since the engine is transferring to UE5 soon I want to know if I should use a more recent tutorial.
You’ll know not to use it if it doesn’t work 
It’s always best to try to use fairly recent tutorials (ideally close to the version of Unreal you have)
The older the version the more likely you’ll bump into a change which will be confusion (menus, layout different, etc) or functions that won’t work.