just an anecdata but recently I was building a HTPC/NAS. Initially I wanted N100 for pure NAS, but ended up with an 5500 AMD and I was blown away by the capabilities of IGPU. Turned out to be a quite capable gaming machine.
And a 2-in-1 laptop in tent mode would be perfect for (casual) gaming on the train with a gamepad; much more ergonomic than holding one of the many heavy gaming handhelds.