Does not having 4.24 effect my playing of epic games?

My fortnite is broken and wont load any more, and ive tried reinstalling multiple times and done the “verify” button several times. would not having the latest unreal have something to do with it?

Not. Fortnite ( or any game for that matter ) gets installed with the relevant copy of the engine it needs. That fact that you have a development version of the engine elsewhere on your computer doesn’t matter.