https://www.kpm-berlin.com/en/manufactory/kpm-history/

Did you read the link ?? KPF and KPM can be the same but KPM by the royal manufactory is a different company !! I know this is confusing but you have to be aware of the company name !! Kister was allowed to use the KPM but is a different company from Koniliche which also used the KPM initials !!

Thanks for the reply! I have searched the KPF mark quite extensively but can’t seem to find anything. As for the KPM mark, I can find tons of information and pieces, lol.

https://www.porcelainmarksandmore.com/related/silesia/waldenburg-01/index.php

Your set was made by Krister Porzellan-Fabrik !! Read above !! Quite interesting !! But you need to really pay attention to the marks on anything marked KPM just to make sure you get the right company !!
Scroll down on that page to see the marks and years they were used !!
It does appear to be a vanity set or at least part of one !! Just look up KPF or KPM vanity sets to see others !!