Also, people are far more mobile these days. There's less of this sense of "building up a home" in this new generation - we aren't as attached to our things as our previous generations. There is also the culture of fast 'x' (not the movie, just a placeholder - like fast fashion, fast furniture, etc) and availability that people (millennials, gen z, gen alpha) desire these days.

IKEA tables are easier to disassemble and put back together (with varying degrees of success) for folks who move around. Alternatively, it's much cheaper to just buy a whole new set of IKEA furnitures than it is to replace furniture that costed 1k+.