Keep an eye on https://lapce.dev/ and https://zed.dev/ . Both immature, but show a lot of promise! Also both open source, so (in theory, I haven't tried) you can contribute patches to fic your issues
Man, Zed gives me hope, but it's missing so many features and (robust) extensions. Monthly I'll open it and see if I can start working with it, but the day still has not come.