To me, it genuinely makes a huge difference that I don't have to manually press Ctrl+R for history search. Because 9 times out of 10, I accept a history suggestion from Fish where I did not think about whether it would be in my history.

This includes really mundane commands, like cd some/deeply/nested/path/. You would not believe, how often I want to cd into the same directory.
But I've also had it where I started typing a complicated docker run command and Fish suggests the exact command I want to write, because apparently I already ran that exact command months ago and simply forgot.

alias fuck='sudo !!' is probably the best thing I've ever added to my profile

i use bash but i also use atuin which makes shell history so much neater. that's about the only convenience i need in a terminal shell.

I script everything in bash, but for everyday use fish just has some modern QoL things that make it easier to get around. For me, specifically, it's the way you can recall commands by seeing a ghost version of your history, as you type. You can even scroll through a filtered history if you're part-way through typing some long command that matches what you have typed.

Another neat thing, it does it's best to predict what I want to type and remembers common locations, showing them as ghost text as well.

Try fish for a week, use the online help to familiarise with the completion stuff... see if you still find bash adequate.