the lighting on this gives an ominous/mysterious feel to the video. like being under a blanket with a flashlight so nobody can see what you're doing.
adds to the hacker vibe "am I supposed to be watching this?"
yikes that guy has sub dermal implants - is this common in your country?
Why "yikes"? I don't think that's common anywhere, but the intersection between "hardware hackers who uses Flipper Zero" and "people with subdermal implants" is probably bigger than the intersection of "people not being hardware hackers" and "people with subdermal implants"
It's not common in any country, it's a fringe biohacker kind of thing.