I’m under the impression at this point that they just do not do well inside can lights. I honestly don’t think the average lifespan is much higher than incandescent in that scenario.
This 120v-using USian has had many fail, and if they don't fail by intermittently blinking and flickering [0], they fail by slowly giving me worse and worse and worse headaches [1]. Unless you choose to count the fact that they were technically still emitting light, I've never gotten the rated lifetime out of a screw-in LED bulb.
[0] ...as all of the ACE Hardware ones did...
[1] ...as all of the dimmable [2] CREE ones did...
[2] These were never attached to a dimmer. At the time, the advice was to get LED bulbs rated for use in a dimmer, as it was believed that that would get you higher-quality construction.