Tbh I'm a flute player but I loathe technical stuff. I know playing flute is all about the runs but composers seem to forget that flute players can play slow and lyrical stuff too? I'm tired of playing stuff that tests how fast my fingers can move, I want perform something so beautiful and expressive that it'll break the hearts of the people that hear it (in a good way, of course).
I personally love low flute. So like the flute in its lowest register is my jam. To me it sounds warm. Now as a composer I completely understand what you mean by composers only writing fast technical stuff for flutes, because I exclusively only write fast technical stuff for flute. However there are pieces out there for flute that are extremely slow and lyrical. It’s probably someone’s Adante in a flute sonata or something, but I know they exist!