When you have a lot of branches and multiple remotes, the commit graph can get a bit crowded and confusing. It would be nice to have a solo and mute toggle for each of the branches, branch "folders" and remotes in the left side list. These would work very similarly to solo and mute toggles in audio editing apps.

You already have a similar feature to toggle between All vs. Current Branches and toggle Show Remove Branches. I think this could be improved by making it an option on each branch and remote separately.

Muting a branch would simply remove it from the graph view. This would be useful to hide experimental branches that you are not working on currently, but also don't want to delete or push.

If you have multiple remotes, it would also be useful to hide some of them. Maybe you have an origin and an upstream branch. While working on a new PR, you might only want to see the origin and only show the upstream when you are getting ready to push the PR. This way your commit graph won't be cluttered by lots of other branches and commits from the upstream repo. This is similar to the Show Remote Branches toggle, except it would be an independent setting on each remote.

Soloing a branch would hide all other branches in the graph view. This is similar to the Current Branch only option, but it would work on any branch, not just the checked out one. 

GitKraken has this feature and I find it quite useful.

https://support.gitkraken.com/working-with-repositories/hiding-and-soloing/