Gaming hub app is useless

[Im_Batman]

I'm using Galaxy M55s 5g, and I can't install game plugins in my phone and  I can't even mute games. What's the point of having this gaming hub in my phone??? It's no use, my old galaxy M52 has this features but not this phone?? It's annoying 

Someone tell me if there's a way to atleast mute game sound coz I like listening to music while playing 

[EllisKai]

If you already have the gaming hub, you can start the game on mute by tapping the speaker button shown in photo number one.
It will not mute the game but it will only start the game on mute.
Some games offer volume control in their settings.

I can only upload 4 photos per answer so wait for my next answer.

[palilie123]

777pub

[EllisKai]

For you to manage every app volume limitations, you may use Samsung sound assistant (photo #2). I'm using color palette so pay attention to the app name and not the icon color.

There you can add limitations to most of the apps available in your device (photo #3)

If you didn't add the game on the list in photo #3, you can just press the volume button while in the game and adjust the game volume percentage there on the volume pop-up (photo #4)

If you are already playing music player while playing the game, you can press the volume button and tap the three dots on the main volume pop up in photo #4 to see other media playing. You can then adjust volume limits for every app that plays audio in the background (photo #5).

I'm not sure if all the apps and features i mentioned are compatible with your device. You can give them a try.

I hope this helps.