I thought about buying a laptop like this:
Acer Aspire 3 A315-23-R6H4 Notebook (39.62 cm / 15.6 inches, AMD Ryzen 5, 512 GB SSD)
can I use it to play games like among us, Minecraft and Fall guys?
Laptops are not really good for gaming and when they do, they are overpriced and cost about 30% more than a normal pc.
But if you are looking for a laptop to gamble, make sure that there's an additional graphics card in the laptop. You can throw an internal integrated graphics card in the trash.
It would probably be just enough for your games, but nothing more