Charlie. People are asking for F5 function for all tracks. That is a valid wish, people are not asking for a workaround.

Watch this 30 second video. What do you think is happening to the Guitar track when mute at the bar (F5) is applied??
https://www.dropbox.com/s/24hxod6np0v7sp4/Flashback%20-%20Dec%208%2C%202022%2011_33_58.mp4?dl=0

"Using Audio Edit is actually faster" Please do not misinform people.
It took me 16 seconds to mute 4 instruments at one bar and unmute them at another. (TOTAL TIME!) Now, when you beat this number by method which you said is "faster", or even come remotely close to 16 seconds of muting and unmuting four instruments at different bars, please chime back, as I do want to learn more.
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People want a convenience of being able to do things in a fast track. This is not how you envision it, but that is what they (including me) want. No need to derail a well supported request.