I have two Roku Stream Stick+ with voice remotes. Yesterday, the volume up button on one of the remotes stopped clicking; it still works, but there's no click feedback. It's barely a year old, and I've checked for dirt and cleaned it out.
Interesting. I've had my Streaming Stick+ for quite a while now and I don't recall ever having any audio acknowledgement of a volume press, neither up nor down. My Samsung tv just pops up a volume slider at the bottom of the screen.
Two thoughts:
Could this be a sound the tv makes when volume is adjusted, rather than a sound from Roku?
Roku menu path Settings > Theme > Sounds -- are you using anything other than the default Roku sounds?
No, not audio feedback but feeling a "click" like a switch. I think the switch is failing, I have to press harder and harder for it to register the button press
Those volume buttons on the remotes I've taken apart are the tiniest buttons I've ever seen. I have a couple of remotes where the buttons either don't "click" or just don't work anymore. They're very fragile.