This is especially rampant in romantic piano music and later. There are places that pedals are marked, and places where they are not marked. I understand if it's a predominantly staccato passage when the detachment must be heard. It's also fine if it's a very slow and sparse legato passage.
But there are lots of places where they don't mark it, like when the bass notes sound like they should last the entire chord, when it's difficult to maintain legato because of far jumps or large-stretch chords, and a wide range of "arpeggio" notes. It sounds HORRIBLE and/or WRONG without the sustain pedal in a lot of these unmarked places. Besides, artists DO use the sustain pedal in these unmarked places (recordings), as I've also seen live performers do the same.
I've seen in similar questions that it's really the pianist's call when [not] to use the sustain pedal. I understand this if there are absolutely no pedal markings in the score (like Rachmaninoff's Prelude in G minor - all editions I've seen so far), but when they specifically mark pedals, it seems adamant that I shouldn't when they don't mark it. So, with such pieces with specific pedal markings (especially the absence of them), can I still use the sustain pedal as I deem appropriate?