Unlike DAWs BIAB main task is arrangement. You have to be able to quickly try, change, flip items. This (current F5) is the fastest way. In about 80% of the cases, I would still use gain automation in DAW after transferring project either to adjust timing or artifacts that often creep in. Nevertheless it is still the fastest way to flesh out initial idea out. The difference between my #1 and #2 is this:

#1 specifically deals with expanded views. For example width zoomed Track view. You would either need to zoom out all the way, to have full access to (potentially) all 24 tracks in one screen, or scroll down through entire project, carefully selecting tracks.

#3 deals with mechanics. As if to be done your way, user would definitely need to use shortcuts. For example selecting all tracks, then holding CTRL trying to find proper tracks to exclude. And you would still need the window (panel) that would show you the list of what exactly was applied and where.

and that is actually #4
#4 - Because you need to be able to see what was applied and where, you would still need a panel to display all tracks mutes status and global changes. My proposition to leave all functions intact but to have it done better for improving workflow, fixing existing flaw of "utility" dropdown and embrace new design/panel smile
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There were 2 main reasons why a few years ago I was so insistent that we need more tracks besides legacy. One was obvious - to be able to to make better & richer arrangements, to have option to hear different tracks side by side on actual arrangement, but another reason was related specifically to Bar Changes. While you "can" change style at the bar, it has it's own set of issues, so I found the easiest and most stable way is to build arrangement of lets say 12 tracks and alternate between them using Bar Settings mutes at the bar on different parts of arrangement, instead of gluing pieces together on a single track (as some forum members did for many years). All I am saying, tool has a very specific purpose and I hope somebody who is using it often can offer a view.