A:Answer Don't feel dumb! Yes, this will play those games well and is very good for surfing/music streaming (has surprisingly good audio and speakers for a laptop)
The biggest downsides would be it is pricier and quite large and heavy. If you are looking for something that is going to replace a desktop PC this would be very nice as the large screen size and drive make it a very viable desktop replacement. Portability is a bit more of a pain due to the weight if you are looking for a laptop for on the go, however.
Upsides would be it would last you quite a while since the base configuration would be super for a long time after purchase; the games you mention and general surfing/streaming/etc. don't tax a machine too much so even as software becomes more demanding the things you mention wanting to do would likely be still easily doable several years down the road.
Hope that helped!