Should code completion preselect in the dropdown? For example, if I write "object.l", this opens a dropdown with "length". Should the length be selected, so pressing "enter", inserts it directly or should I first need to press "down arrow"? In visual studio, it is not preselect if I write a function, but does preselect for members. Is there some common approach?

I am used to tab for completion, and to not preselect, but I haven't used a standard IDE for a long time -- one reason is because they annoy me a lot with their completion flows 😄

See, that's the thing. I feel like pre select is great 90% of the time, but if it isn't, it's really irritating.