[msravi]

Your not accepting the 1st suggestion (Arrow) when you typed "Ar" decreased the probability that that was the term you intended. The next suggestion factored in that you were probably looking for something else and bumped up other suggestions.

[arlens]

That’s a bad assumption. People often type faster than they can respond to changes on screen. Typing speed & muscle memory means I’m more likely to type “arr” than just “ar”. But I’m also likely to be thrown off by the search reshuffling as it expands.

Once an item matches the search, it should stay in place unless it’s invalidated by further typing. Reshuffling just adds needless friction.

[krageon]

This actually made me laugh with how tone-deaf it appears to be about how users normally interact with a search field. Is this response based on industry "knowledge"? How did this sort of thinking come about?

[sandov]

That would be such a stupid way to implement a search.

When you search you don't type letter by letter and inspect the suggestions after each keystroke. You type many letters and only then you inspect the suggestions/results.