Creating a loading bar to load in all textures and sounds before game launches

Hey,

I've googled this, but every result is about creating a loading bar in the UI.

What I'd like to do is SPLASH >. LOADING SCREEN > MENU > GAME etc

In the loading screen, I'd like to load all the textures and sounds and keep them in memory so they don't need to be loaded again.

What's the best way to go about this? It'd be nice to be able to get the percentage loaded too, so if it's a list I can iterate through that'd be great.

Thanks!

 

(It's a relatively small game where you die and repeat a lot)

 

If I referenced an asset (monobehaviour/scriptable object) in a loading scene (and kept as donotdestroyonload), and that asset has references to all of my sounds and textures, would loading the scene async achieve this?

 

Totally talking to myself here, but the above seems to work fine