Oh man, I've tried using Ivy, but it's terrible. I tried typing '~/.c/r/r' to quickly get to my RetroArch config file, and I immediately got stuck in '~/.cache'. With Vertico it Just Works (R). Icomplete (whose vertical mode is part of Emacs now) can also do it, but I prefer Vertico's UX as the way Return and 'C-j' work in Icomplete is opposite to what I naturally expect and rebinding them doesn't work that well.