I remember reading a book some year ago my first tenure in college: Zen & The Art of Motorcycle Maintenance.
The book's main character, Phaedrus, described a lot of what I'm hearing in the OP's original video. Realism, where reality exists independent of observation, or Determinism, where reality exists only when we observe it.
Pirsig's metaphysical monism (yeah, I wrote a paper about it Oct 8, 1976 for my Humanities course) was that reality exists in the quality of instantaneous observation.
For example, when we first see a new baby's laughing face, or an exquisite landscape, a beautiful flower, or a beaded with condensation, ice cold glass of water on a hot summer's day, the instant we see it, was described as "quality."
Further, quality is not inherent in either object nor subject. Quality is described as the instantaneous moment when object and subject meet. Any post-instantaneous intellectualization after the meeting, is known as thought, and is not part of the realm of quality, which the author intended his main character to muse about.
The author concluded that subjects require objects, otherwise there is no subjective frame-of-reference, and that objects require subjects, otherwise there is no instantaneous point of quality.
This is all very interesting, but it stems from the writings of Lao Tzu, in the Tao Teh Ching. Lao Tzu said that Quality "may be looked at, but not seen, listened to, but cannot be heard, grasped at, but cannot be touched. These three elude all our inquiries and hence blend and become one."
Likewise, Quality is the origin of both heaven and earth.
Perhaps physicists are viewing realism and determinism from a philosophical POV, based on their knowledge of previous realms of thought rather than from either a real or deterministic view. If that's the case, physicists are relying on philosophy that is over 2000 years old, only recalled by Zen & The Art of Motorcycle Maintenance.