Although the article talks of LED wearout, I think the key data was a survey of outdoor LED systems: 10% of failures are the LED itself, the other 90% is support components that fail causing shorter lifetimes.

I'm curious how it compares to the LED filament lighting which can use much simpler power supplies with fewer components which should mean much lower failure rates.

https://en.wikipedia.org/wiki/LED_filament

LED bulbs contain more components than incandescent bulbs and have more failure modes that simply going ‘pop’.

The AC-DC or DC-DC converter will likely die long before LED's junction. Primary failure mode is capacitors "drifting" and closing the mosfet inside the buck converter too early.

This is why I tell people to buy simple "driverless" LED bulbs. A shitty constant current driver is worse than not having it at all.

The LED drivers suffer heat degradation due to poor heatsinks.

It's complicated

tldr; LED lasts 100000 hours, other parts of bulb do not.