iOS: how to change the alarm volume using the volume buttons when the option to do so is enabled

Thank you, but that is what I already attempted. The clock app does not seem to specify whether it uses the ringer volume or a separate volume setting so I mashed the UP-VOLUME button from both the home screen and the clock app screen. One thing I noticed was that when using the buttons to bump the volume up and seeing the vertical volume bar being adjusted on the screen, it kept settling back down to a lower level after I would release the button. Almost like holding the VOLUME-UP button was allowing the volume to be turned "up to 11" like the Spinal Tap movie, but as soon as I released the button it would lower itself a notch or two before disappearing.

I assumed this the alarm volume since I still have no idea what else it could have been. But apparently it was not.

So when I am on the home screen, and I use the volume buttons to adjust volume, and a volume OTHER THAN the ringer volume is being adjusted... what volume is that? Does the home screen have its own volume? For what? Where do I need to be in order to use the volume buttons to toggle the ringer volume?

I am still getting the non-ringer vertical volume bar on the home screen and I have no idea what volume setting it is referring to.

Huh, I guess it may have been adjusting the notification volume then, because I bumped it to max but the alarm volume proved to be set to about 5%, and I was not on a call or recently on a call. Still a bit mystifying but thanks for the info.