I'll be switching back to CFL for the time being, but I hope LED will eventually get equal lifespan and light quality.
Never tried (normal) LEDs with the exception of flashlights and similar, there they are OK.
With the LED filaments I'm finally happy since a few years. I use them exclusively now. Their color temperature and representation is pleasing and comfortable for me. They don't flicker, and I'm sensitive to that. And none died or went darker, so far. Also they are using way less power for the same Lumens, a.k.a. brightness.
One reason I can imagine they flicker for you, is that your mains electricity is at 60Hz, and you screens refresh at that rate, too. That can lead to "Schwebung", "beat effect", "overlapping frequency fluctuation". Which of course would be unacceptable. But I don't have that.
Another reason could be the way the electronics switch from mains AC to DC. Which you seem to had bad luck with.