I’ll never be able to unsee the 666 in bbb .

Symbolism is the universal language

https://www.law.cornell.edu/uscode/text/18/713

"(a)Whoever knowingly displays any printed or other likeness of the great seal of the United States... for the purpose of conveying, or in a manner reasonably calculated to convey, a false impression of sponsorship or approval by the Government of the United States or by any department, agency, or instrumentality thereof, shall be fined under this title or imprisoned not more than six months, or both."

The subtitles appear at about that height on the screen. It could be a masking effect to make the white letters more visible.

I mean, if you’re going to install a fake president, are you really afraid someone is going to come after you for not blurring the Great Seal?

This appears to be apperture related. When you have a wide apperture (low f stop) you tend to get a narrow field of view (fov) which results in the background and foreground betting blurred.

There are filters designed to darken the picture so you can open the aperture wider and get a narrow fov.

Source: I used to sell cameras before the smart phones wiped them out

--- here is a good explanation for the foodie's

https://www.chocolatemoosey.com/2012/09/13/understanding-aperture-a-k-a-how-to-make-your-background-blurry/