[hibbelig]

I think what you are talking about are the fish "suggestions". By default, that text is greyed out and if you like the suggestion, you can cursor-right (or ctrl-f) to accept it. But if you don't like the suggestion, you just keep typing.

If my hunch (that you are talking about the suggestions) is correct, then perhaps it works to set it to white on white or black on black, or whatever matches your color scheme. It will still be there, but you won't see it :-). (But you would get it after cursor-right or end or ctrl-f or ctrl-e...)

[enriquto]

hahha, cool hack! I'm still a bit irked that the text is there (but invisible), but this is the desired "normal" effect.

[hibbelig]

It would be nice if it was possible to turn autosuggestions off, I agree.