Ore dake Level ga Agaru Sekai de Akutoku Ryoushu ni Natteita, which has a misleading title since the protagonist is not vicious/villainous in the slightest, perhaps unsurprisingly resembles Akutoku Kizoku no Seizon Senryaku in many ways. The execution here is notably better though with far more consistent character behavior.
The sixteenth Infinite Dendrogram novel is similar to the eleventh in that it’s a flashback focused on a different set of characters. Differences would be which characters are focused on (Hugo and the remaining previously unseen IF guild members in this case) and events taking place around the same time as the ninth book rather than the distant past.
While structurally sound, I didn’t find any of the featured characters here particularly interesting. Making this, for me at least, one of the worse books in the series. I’ll probably wait for the relatively recently released 20th entry to get translated before deciding whether or not to follow the series any further.