Honestly, fish is the only thing I hate about Garuda. The variety of commands is good, but doing any kinda scripting in it physically hurts me. Wish they kinda just stuck with a more conventional shell like zsh.
still do the scripting in Bash for portability reasons,
For what it's worth, Debian and most of its derivatives use dash (a Linux port of ash) instead of bash for /bin/sh. It's ~4x faster and uses much less RAM than Bash. Usually the only scripts that use Bash are scripts that aren't POSIX compliant or that use Bash-specific features.
The auto suggestion from Fish shell is something I cannot live without anymore. Saves me so much time and avoiding typos. Not sure if zsh can do the same, maybe with a plugin ? If so, I'd like to hear about it. I use zsh for a few things, besides bash and fish to keep their history apart.