I will pay someone to replicate this background and show me how they did it

After asking around on Reddit, YouTube and Discord, the answer for how the background in this clip was made is video feedback.

The consensus seems to be that this was done with analog tech and likely made using an old school video enhancer using a feedback loop.

If someone with that setup (or something similar) could try to replicate this background and tell me how they did it (or record a video of the process or whatnot) I would be willing to pay you for the trouble. Bonus if you’re able to do it with Video_Waaaves since I have that program and can run my recording through a VCR to get a similar effect.