Not quite true. Every player gets their own drops, invisible to each other for the most part. Of course with the intent of removing things to fight over.
During raids, it is possible that if you dally too long after someone opens a raid chest, it will disappear. They may have changed this now, though, but in Y2 I still was running into people who had it happen to them. Haven’t played D2 enough yet to know how it handles this.