Yes, zsh – which has been my daily driver for more than two decades – offers the best of both worlds, long and short names for most of the useful variables, but

Yes, zsh – which has been my daily driver for more than two decades – offers the best of both worlds, long and short names for most of the useful variables, but those do not affect the [expected] core shell functionality. I suppose, I should have made my point clearer earlier on. A UNIX shell (along with the terminal) is such a fundamental tool that a substantial departure or a paradigm shift from long standing foundational conventions or from the familiar syntax had better bring at least a tenfold increase in productivity for me – to substantiate the said departure. Then I will happily change my workflow and retrain my muscle memory to adapt. scsh is the only other shell that came close to that at some point in space and time, however, it seems to have perished into the oblivion. A new shell with reasonable and more new user friendly defaults at the expense of missing core shell features does not reach the tipping point for me.