A power factor is not what you think it is (has zero to do with efficiency).
It involved having special full body clothing, removing all other people from the room/place and other creepy things.
Once I've told people that they happily bought the then 50$ led bulbs. Usually at least.
We shall, in short order respectively have trillions of LEDs in landfill.
Old LEDs were a dollop of glass/plastic over the device, but sme/rgb LEDs are a bit more complex than the old LEDs of the past.
Luckily, due to LED longevity, we have a decade or two to get better at recycling e-waste for the majority of bulbs out there.
The Phoebus cartel may be long gone but planned obolescence is a stronger force than ever before.
Low-power indicator LEDs do have extremely high longevity, but the type used for illumination certainly don't, because they are operated far closer to their limits; plus they need special driver circuitry which also limits lifespan. Components like electrolytic capacitors have lifetimes far shorter than the LED itself in typical LED lamp applications.
LED solves many of these issues thankfully,