Lubuntu was originally created by Mario Behling (a huge open source advocate; see FOSSASIA for an example) and Julien Lavergne. Mario really hasn’t been involved since its infancy, but .net and .org are his. Julien left in the early days of the LXQt era and may be responsible for .fr (he is French) but I doubt that’s something he even pays attention to if it is his. FWIW, few people find it. Mario’s sites are the problem.
.me was created because we could never get Mario to update the website and we had no access to it. We’ve revised links to Lubuntu nearly everywhere we can find (including Ubuntu, Canonical, Wikipedia, DuckDuckGo, DistroWatch, etc. etc. etc.). Canonical owns the .me registration. So it’s pretty darn official. Mario even changed his footer to include “This site and its content are are not related to commercial activities of Canonical.”
As for Google, we could probably spend tons of effort doing SEO but based on my experience at $WORK that’s an expensive and never-ending amount of effort.
So, speaking on behalf of the Lubuntu Council, I can tell you that we are doing everything we can possibly do to improve this situation. We recognize how confusing it is for users and it continues to rear its ugly head, so we continue to pick at it. And we will continue to do so.
If you want to do something to help the situation, it’s possible that providing some constructive feedback to Mario might be helpful. He does have a contact page that links to some resources, although I don’t know how useful they will be. The GitHub repo for the website hasn’t been changed, apparently, since 2017, and there are lots of issues including several wrong download link issues (which has always been our big problem).