what does him even do with all this things the companies send him
fnatic already sent him a shit ton of mousepads, mices and other stuff.
and every other day he gets a new pc for free just to get sponsored on his channel
Well, duh. Everyone cares about money. It's the main thing that drives everyone to continue with what they are doing.
That can also be said for 99% of youtubers/twitch streamers. All they care about is money. They don't care what they have to do or what they have to play to make it.
Id say hes really smart. He acts like a dummy to get easy money and views. Hes a controversial figure and controversial figures ALWAYS gain attention (Trump, tekashi, etc etc)
He also invests pretty well and is knowledgeable about the steam market IMO. Also getting a sponsorship from fnatic and from gambling sites.
Hes basically playing everyone and hes being really smart about it.