Gamescope cannot detect vulkan when launched inside steam

I launched gamescope via terminal and it worked flawlessly, but when using steam and put it on startup commands for games like "gamescope -- %command%", it didn't detect vulkan For first thought i think it was something to do with the environment variables but no luck, getting gamescope to use which gpu still not worked at all My specs is AMD Rx 570 with I5-3570 which i enabled intel hd for the output of my secondary monitor