Getting up to switch what game you are playing is like 10 years out of date at this point.

But yah, you can sell physical media and buy used games if that’s your thing. For the price of your soul.

The Fortnite version has some in-game currency and in-game cosmetics. If it’s the same price and you play Fortnite, might as well. But it’s not a huge thing. Fortnite is a free game.