Yes, that's always been partly BS. IKEA has a range of qualities of course, but let me tell you about the shitty, shitty particle board kmart? shelves my mom bought in the 70s and moved 5-10 times with over the years. Around 2005 we'd had enough and drug them into the parking lot, and did an "Office Space printer job" to them with hammers.

Was cheap as hell and supported heavy books and CRT TV for thirty years. The durability being too low wasn't the problem.

Maybe if you're in a refurbished hundred year old house and it deserves some dignified antiques sure, but for the rest of us IKEA is just fine. We even have a 15 year old very cheap Lack table in the corner.