Why can't I mute YouTube or Music on my iPhone?
Why can't I instantly mute YouTube or Music on my iPhone iOS 18 with any screen or tactile button?
[Re-Titled by Moderator]
iPhone XR, iOS 18
Perhaps to try a few things to see if those
may affect symptoms you've discovered?
To restart an iPhone could help; that could
help the iOS rediscover and reset features.
Restart your iPhone - Apple Support
//support.apple.com/en-us/118259
Turn iPhone on or off - Apple Support
Force restart iPhone - Apple Support
//support.apple.com/guide/iphone/force-restart-iphone..
..Not sure what else to suggest; more often than
not, my time is spent off-line. As volunteer helper
here; in this user-to-user tech support forum..
So I may not monitor these discussions, even when
my ASC is set to 'Follow' certain recent ones I view.
(Your question is rather vague from my perspective.)