Scribe
Legend
No, not specifically.
Whizbang referenced a few specific hugely-successful-in-pop-culture fantasy properties as examples of fantasy IPs which are contemporaneous with 5E and likely reference points for modern (younger than us) D&D buyers and fantasy fans. (Side note: As a tiny piece of anecdotal evidence, I have a younger relative who's a recent college grad who was super into Minecraft and got into 5E as a teenager as well.)
Maybe I misunderstood you, but it seemed like, in your reply to Umbran, you were suggesting that those particular properties couldn't been inspirational to/informative of 5E. I was just pointing out that the ones he mentioned all predate it and were big before it, so if the 5E designers were taking anything from then-current pop culture fantasy, they would indeed have all been in the zeitgeist.
Though I think the point being made was less about what the 5E designers found inspirational (they're mostly older folks, and as you mentioned, in Appendix E they name older stuff) and more about what the current wave of Gen Z and Millennial fantasy fans have as reference points for fantasy. Given that anime, for example, is indeed hugely represented in the fantasy media these generations consume, I'm almost surprised that current WotC D&D art and products don't resemble anime even more than they do now.
Right and again, I have no problem saying those IP's are formative for some people, or even would be seen as inspirational to 5.5.
HOWEVER.
They are not present in 5e as released, the edition with is still claimed to be evergreen, until 6e comes out, and upon which 5.5 is based.
5e is not 'inspired by minecraft, avatar, anime, and league of legends'. 5e, is the apology edition that was meant to go back to the games actual roots.