I have to give Congrats to the MATE desktop team, Ubuntu MATE team, And Valve. And the rest of the Opensource Projects in the linux world (i know steam isnt open source)
Ubuntu MATE Is PERFECT for Gaming,Office,browsing,productivity,Music,media,and is Easy to tinker with.
as far as i heard Steam is increasing support for linux. Such as VR Support For linux. Infact there are now about 5K Games for Linux on steam. Which should be seen as a big milestone. And im honestly Suprised an Operting system Like Ubuntu MATE which Is Free,open source and still Developing. Is able to work perfectly with steam and all of the rest of the Programs. even on a Low end Intel celeron Computer.
Good Job really!