After being a fish die-hard for like a decade I finally gave up and learned to embrace Bash for its ubiquity. I realized all I cared about in fish was the built-in autocomplete, colorized output, and history management, which I was able to bolt on in short order to Bash.
Now I use ble.sh [1] and Oh My Bash [2] and Atuin [3] and I love it.
This is really a field where I feel standardization is the better path. It's a similar feeling I get when I observe the vast array of notetaking apps I see made and think here is a place where it would be better to pick one FOSS solution and contribute.
[1] https://github.com/akinomyoga/ble.sh