Make a feature in Ableton 12.2 that allows users to press 'SHIFT+0' to mute tracks even if you don't select track itself, just how S for solo works. You have your mouse selected a timeline or clip and then you can press SHIFT+0 to mute the respective track faster. And you have press 0 to mute clips already in ableton. Please add this small change in Ableton 12.2.
As of now, when you have a track's timeline selected, you can press S and solo the respective track. But you can't mute the track with any key. You can mute the track with the key 0 but you will have to move your mouse and click on the track itself, selecting timeline pressing 0 means muting the clips that are selected in that timeline.