Emacs' standard find-file function also does it, and I've since gotten so used to it that it's very irritating when I have to use a piece of software that doesn't complete like that.
There have been decades of work on file name completion put into Emacs, nothing I’ve seen comes close. Currently I’m using add on packages vertigo, orderless, marginalia, consult, embark, and corfu to handle completion. These packages all work together to produce a crazy good setup, but in the past I’ve used helm, ivy, icicle, and vanilla Emacs. Every one of these open source completion frameworks works great.
Of course, I’ll never get back the time spent fiddling with my 1600 line Emacs configuration file.
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.
Of course, I’ll never get back the time spent fiddling with my 1600 line Emacs configuration file.