Pardon my ignorance, but can we then infer that upstream, Debian will have similar or better results? What distinguishes Ubuntu in this case from, let's say, le

Pardon my ignorance, but can we then infer that upstream, Debian will have similar or better results? What distinguishes Ubuntu in this case from, let's say, less bloated distros? Just a better PR department, or are there any technical reasons to single it out?