That’s actually an accessibility feature intended to keep the eye level roughly at the same position; the person saying “I hate it when editors do it” is really not understanding why this is a feature and not a bug.

Not and IDE but if you’re starting up, the Helix editor works well with rust. Bear in mind that it lacks some features of a full fledged IDE and even things neovim and kakoune already do, but it’s a slight different approach and I’m loving it.

https://helix-editor.com/