This link has a comparison between the current version of MediaSuite (version 16) and previous versions. Bear in mind, the MediaSuite product appears to have versions of CyberLink products that are two versions behind the current ones,
https://www.cyberlink.com/products/cyberlink-media-suite-ultra/compare-versions_en_GB.html?affid=2581_1350_540
For instance, it has PowerDirector 16 and the current one is 18.
I would be surprised if you could get an upgrade from your version to 16 as typically they offer this from the previous 2 versions, but only CyberLink can tell you that for certain.
As to OEM versions, I can't say for certain as I don't have any Dell products, or used any OEM versions of CyberLink products. However, I read every post on these forums and users often complain about not being able to perform certain operations and that is because they have OEM versions. Again, you would need to ask Cyberlink or other Dell users.
So I would say install the ones you might want to use, for example, PowerDirector, to edit some videos. You can always remove them or just not use them if you are not interested.