Do not believe the rumors and snake oil. Nginx and Apache have a big community because they are open source and anyone can contribute. Litespeed is a private company with a closed-source web server. Now they released Openlitespeed (free and “open source”) but removed many of the core features… I guess that is to encourage people to try OLS before upgrading to Litespeed Enterprise.
Very clever marketing, but some of FOMO techniques (Fear of Missing Out) are going too far now with anti-Nginx disinformation.