Shells imo are legacy on legacy, I like bash and zsh, they’re nonsensical but they work. Powershell is undoubtedly saner, but I hate it.
I think the whole concept could be rewritten from the ground up to be modern, but reaching critical mass and mvp is too damn difficult, and the majority of mac/Linux users probably don’t want it.
There are already alternative shells. I think there’s some stuff fairly deeply rooted into gnu that’s an ‘issue’ for rebuilding and turns an effort into a complete redesign, making the whole thing hard to achieve.
I think the whole concept could be rewritten from the ground up to be modern, but reaching critical mass and mvp is too damn difficult, and the majority of mac/Linux users probably don’t want it.