Comment by Yizahi

Depends on the models and your definitions of words. I've taken my Ikea table apart 3 times now and it is still absolutely rock solid, it has inserts for screws and they looks like can be re-assembled at least a few dozen times without any issue. I've also used an ultra cheap lowest tier possible, small table from Jysk which was absolutely a cardboard inside and weighed a like a feather, it was even cheaper than lowest Ikea tier. It worked for 3 years and I disassembled it's legs mounted on the self-tapping screws twice and gifted it to a neighbor recently so that would be a third time. It was still just fine, I didn't even need to drill new holes for the screws. Kitchen and wardrobes from Ikea will likely last decades without much issue.

Ikea sells cardboard things, they also sell wooden massive furniture too (surprise) and anything in between. The quality is appropriate for all tiers and they don't collapse after a single disassembly.