Notes about steamplay (Proton)

SteamPlay.md

Now Linux can play windows game through SteamPlay and Proton.
Open steam, in the menu -> settings -> Steam Play -> check the following boxes:

• 'Enable Steam Play for supported titles'
• 'Enable Steam Play for all other titles';
  For 'Enable Steam Play for all other titles',
  you can use either Proton 4.11-11 or Steam Linux Runtime (Sometimes Steam Linux Runtime is not working...)

One more thing, make sure to install Vulkan driver (of course you need mesa/ nvidia/ amd GPU drivers before that),
otherwise steam will prompt you your GPU driver is not support directX11.
In Ubuntu, you can install it by:

sudo apt install mesa-vulkan-drivers

Update

It's so lag to play Witcher 3 Wild Hunt with Intel Integrated Graphic Chip on Linux.
So I switch to desktop (Nvidia GTX560)
but it can't launch the game with SteamPlay just because Nvidia don't support Vulkan driver in GTX 500 series
Damn it.!