I updated my galaxy A20s to Android 11 One UI 3.1, but it's about 2 years I'm using my phone 📱 and I can't install some Samsung apps 🙃 including: Game launcher , Samsung screen recorder and else, also I tried to turn on the game launcher from advanced features in the settings but there is no option for it,
Samsung screen recorder doesn't exist. Go to settings and go to apps menu and find game launcher app click on it and at bottom here's an option to enable it. You can also search it on search bar in apps menu
