Kylo Ren lost to Darth Vader in an important aspect - Star Wars confirmed this
Kylo Ren was the central antagonist of the Star Warssequel trilogy, leading the First Order as Supreme Leader. However, a new comic has confirmed that Darth Vader's grandson was not nearly as famous as Vader himself.

InLegacy of Vader #8, the whereabouts of the Knights of Ren betweenThe Last JediandThe Rise of Skywalker are explained. Sunrise. The issue also reveals an unexpected truth about Kylo Ren's position in a galaxy far, far away.
Kylo Ren became Supreme Leader, but was unknown to anyone
This issue featured the debut of Tava Ren, who led the Knights after Kylo Ren left them on the orders of Supreme Leader Snoke. This was before the events ofThe Force Awakens.
Unable to understand why the Knights are in decline after a failed mission that saw them all retreat, Tawa inquires about the situation. She expresses confusion about the name Kylo Ren, as she apparently has never heard of it before.
This issue takes place shortly after Kylo became the new Supreme Leader by killing Snoke inThe Last Jedi. It's surprising that Tawa didn't even know the name of the former leader.
Darth Vader was more terrifying

While this may seem surprising, it actually makes sense that Vader was more famous than his grandson. Despite very similar positions in the Empire and the First Order, Darth Vader was Emperor Palpatine's student and chief enforcer for a couple of decades.
In the case of Kylo Ren, everything is different. He only appeared on the scene beforeThe Force Awakensand subsequently redeemed himself within one year.
Given the vast size of the galaxy, it makes sense that members of the First Order such as Kylo Ren were not as well known. Therefore, Tawa does not know who Kylo is.

