Any recommended flicker free light bulbs in the USA?

Doesn't have to be LED. Any light bulbs that are flicker free would help. Please don't recommend the Philips flicker free bulbs as they're not truly flicker free and it's mostly marketing. Philips Hue bulbs also flicker from my experience and testing (slow motion video and Oppo light meter)

The only one's I know of are from Waveform Lighting. Any others?

I found these https://store.waveformlighting.com/products/centric-home-full-spectrum-flicker-free-a19-10w-led-bulb but they are stupidly expensive

Has anyone tried them? Is it worth it? My contractor put “advanced” color temp changing light bulbs in my basement and of course they pwm.

For something like a Philips Ultra Definition 800 lumen bulb, you're already paying a premium for it, and yet it still has a flicker. Most LEDs I've bought have a flicker, but it largely varies in its frequency. In how LED bulbs are designed, why is it not possible to make them without any flicker? Surely you just add more capacitance or use a better switching regulator, no? To be honest, the flicker doesn't bother me much at all, but I'd rather pay a little bit more for absolutely no flicker in my standard A19 bulbs.

I want a standard LED bulb that is,

• 1,500 Lumens

• Double the efficiency, like in Phillip's Ultra Efficient series, with double the individual LEDs to underrun them

• Zero flicker, at all

• 95 CRI, like in Philips Ultra Definition

• Filament style, and designed in a way to withstand high temperatures or an airtight enclosure.

I'm pretty sure nothing like this exists in the consumer market, is it that difficult to manufacture?