Google picks shorter URLs for Canonicalisation
What definitely plays a roll here is when we have two URLs that have the same content, and we try to pick one to show in the search results, www ill pick the short one. So that is specifically around canonicalization.
It doesn’t mean it is a ranking factor, but it means if we have two URLs and one is really short and sweet and this other one has this long parameter attached to it and we know they show exactly the same content we will try to pick the shorter one.
There are lots of exceptions there, different factors that come into play, but everything else being equal - you have a shorter one and a longer one, we will try to pick the shorter one.?
Google: We Pick Shorter URLs For Canonicalization
