Good idea to do a full reset periodically anyways to reset your recommendations.
When I go to YouTube on a fresh device without being logged in, it's a pile of steaming clickbait and pop-internet-culture garbage. On my account, by contrast, YouTube is full of mostly great recommendations of high-quality content and I can pretty much always find several new and interesting things to watch should I feel like it.
(I watch stuff like Kurzgesagt, Smarter every day, AvE, Rick Beato, Today I found out, Wisecrack, Wendover Productions, Practical Engineering, Vox, Crash Course, SciShow... that's just from browsing my current recommendations. I would guess none of that shows up for fresh accounts)
Right now I see the follow up to the guy who build his own VGA card, video of someone building a camera that can see wifi, and a PBS video on the "quantum internet". All great suggestions.