I have never ever recorded videos with any camera. But mostly because my computer has Phenom II 945 X4 and 1GB Radeon 7850 and 640GB HDD. If I got a new computer, then I might start recording behind the scenes for my photos and post them on Youtube.
I am not sure there is any "Youtube craze". I know Instagram has been switching to "reels" to compete with Tiktok, but that's a different thing. That's vertical videos from phones, not regular horizontal videos from dedicated cameras. You can see the same thing on Youtube with its "shorts". That suggests even Youtube is losing users to Tiktok and trying to compete.