Exactly. LEDs are rated for 10k hours. 10-15 watt power supplies made both to cram into a tiny space defined by GE 100 years ago for a completely different lighting technology, and to hit a $2.00 price point for the whole assembly? Not so much.
I’ve actually got a super cheap and super bright LED in my garage that has been working for a long time, but it’s one of those big ugly sunflower looking ones that would never fit in an enclosed fixture anyway, so it actually lets the power supply breathe. Even then, I’m sure it’s putting out more lumens than is good for whatever half-assed components and heat sink are in it.