I would like to suggest to have volume control for each scenes so that when transitioning to different amps instead of dialing it manually inside the amp you can just go on one setting and view the volumes for each scene and make adjustments.
you can currently assign the output volume of a lane to scenes, would that work for you? long press on an output.
As @youthbass said, check the output level of the lane(s) you’re using. You can press the footswitches to switch Scenes while you’re doing this. This is how I check volumes across Scenes within my own presets.
Side note: volume alone does not equate to perceived loudness. You can volume-match a bunch of different Scenes with different clean or distorted sounds in each, and they can feel really out of balance with each other.