I found solution after some time. If you want old gaming launcher so do this trick for 100%results you need to to do open your settings , serch app gaming hub, then tap on three dots it's located at right corner up, then Uninstall updates. Then it's ...

Please give gaming hub like in old version because the installed gams is located in new ui is very bad space for installed games. sometimes i can't find it. So please solve this.