I came here to say this! Konqueror may have served a small community but it was excellent.

It was the file manager as well as the browser and it was incredibly capable. By far the most advanced GUI file manager of its time. And a pretty fast and pleasant browser, although the compatibility was hit and miss. (Those were Flash and IE-dominated days as I recall them.)

A lot of what I loved about Konqueror is captured in Dolphin. I don't think I need my web browser to be a file manager... maybe that concept was just a 90s fever dream. But I miss Rekonq. Maybe I should revisit Konqueror.