Final Cut uses up to 18GB of RAM, so 16GB or more is recommended. Also, MacBooks are NOT gaming laptops. Look for another brand for gaming.
13-inch MacBook Pro comes standard with 8GB of high-performance 2400MHz memory and can be expanded to 16GB, using 2400MHz Double Data Rate 4 (DDR4) synchronous dynamic random-access memory (SDRAM). The more memory your Mac has, the more apps you can run simultaneously and the better they will perform. If you’re planning to run multiple professional applications like Final Cut Pro X, it’s a good idea to max out your memory.
Note: MacBook Pro memory is not user accessible. If you think you may need more memory in the future, consider upgrading at the time of purchase.
MacBooks are great for casual gaming. If you want casual gaming, go with 13-inch MacBook Pro (16GB RAM). But if you want to play titles like Fortnite, Gears of War, TF2, or PUBG, then look for 15-inch MacBook Pro. Games will perform better if you use Windows using Boot Camp.
Note: the item that I recommend may not be the latest model, if you can, upgrade.