In my kitchen I have a flushmount light with an integrated led. I put in an LED dimmer on the switch and all is working well.
However, I had to replace it way sooner than I was expecting. Is there a possibly that the dimmer is hard on it?
I have the exact same one on another non-dimmer switch that is still running fine. That said the other one gets much less use so it could just be that.
Off-the shelf non-smart LEDs are also a thing, they basically read the input voltage as the input for how dim you want them to be. Then adjust themselves as necessary to make less light (as you said, generally by pulsing very quickly). But, you do need ones that specifically say they are dimmable.