I like having a gaming laptop as it's easier to grab and go to game at friends' places. Sometimes I do like to bring my desktop and set up for a good old fashioned LAN party, but other times I want something quick. I also like having a laptop for working on projects on the go, connecting to devices for projects without having to relocate my desktop, etc. Traditional smartphones are too limited for most work and are only good for web browsing and communication tasks. Linux phones are too experimental to rely on but are getting better and better. I have done quite a bit of coding on my Linux phones but their use there is still somewhat limited. I also have a Steam Deck and it is better for gaming on the couch, on the go, or in bed, but it's not really suitable for keyboard and mouse FPS gaming and it's not convenient to do work (such as programming) on without external peripherals.