So here is follow up. Bought microchip from Mouser, shipped from Texas, was gonna get it Monday but it came this morning so I greeted FedEx guy in my underwear.
The markings on genuine chip are just like in the video, 3 lines with indent. I tested oscillator on pin 8, and guess what, it works!
Then I gave it some input, and plotted left and right 400Hz output
I’m happy now 