actually the desktop is superior for opening all the access we want because of its better capacity compared to phones. but sometimes we can't force to bring our desktop when outside the house, it's not effective for me.
but it all comes back to each individual. because everyone has their own ways and busy activities to use a phone or desktop.
Actually that's a good point in terms of flexibilities, phone have some limitations unlike with your desktop or laptop which can bring more convenient views and might be a better gambling experiences, but like what you mentioned with cellphone where you can bring anywhere as long as there's internet and you wanted to bet or play your favorite games.
It really going to depend on a situation, but like you I also wanted to use laptop or desktop if I'm home playing or betting with my favorite sport games.
even though gambling on mobile phones has display limitations that are not like desktops, gambling on mobile phones will be the best choice when you are away from home. and I think gambling using a mobile phone can also be done in desktop mode on the chrome browser. well, even though it doesn't look like when using a PC, at least using desktop mode on a phone can remove the limitation of buttons that don't appear on the phone screen..
We can always bring our laptop or tablet if we wanted a bigger screen. For me I would rather choose a laptop than mobile phone because of the screen size. I always prefer bigger and clearer screen and it is provided by a laptop or tablet in case we are out of town or away from home and wanted to gamble. I agree with the earlier reply that a tablet is a mixture of both since pc and mobile phone in terms of portability and size of a screen.