You are likely not going to find an official ‘planned obsolescence department’ Companies are not going to admit they plan for such things for obvious reasons- Yet most people can tell you that products today are designed very cheaply and do not even live up to their ‘life expectancy’ claims because companies know that few people are actually going to go through the bother of cashing on on their warranty - When you buy products that have plastic parts that break easily after being subject to wear and tear- you can bet it was planned that way- either that or the designers aren’t very bright- and because there are no official ‘obsolescence departments’ there is plausible deniability- so there is no way to prove it- - I am simply telling you that this fella described that he worked in a department that planned obsolescence- many many products today are created with cheap plastic parts in critical stress points- they use cheaper products like on off buttons that don’t last long- their electronics panels are slapped together cheaply-
If the reason you are asking is because you are having an issue with obsolescence - your only real recourse is going to be to contact the company directly and go through the bother of warranty fulfillment- good luck with that- you likely will not find an official ‘planned obsolescence department’ nor a VP willing to admit they are screwing customers over with cheaper made, yet more expensive appliances-