Same experience here. I film all the led bulbs I purchase in 240fps to see if they flicker at 60Hz. I discovered that Philips bulbs NEVER flicker. Occasionally I stumble upon other cheaper brands that don't flicker, but there is never any guarantee. I might buy 2 batches 6 months apart of bulbs from the same model from the same third party seller on Amazon, and they slightly changed the product (updated packaging and markings on the bulb) and one batch doesn't flicker whereas the other does... So I end up nowadays just buying Philips.

A ton of LEDs flicker at 120hz which makes me crazy. It's like a strobe effect that I only see when moving.

The Edison style are often like that. They use four led elements configured as a full wave bridge rectifier but because the diodes are themelves the load ther is no place to put the lowpass and so you get 120.

Oops I wrote 60Hz but meant 120Hz.