https://bugs.winehq.org/show_bug.cgi?id=57327
--- Comment #5 from mk939@ymail.com --- Thank you for clarifying. libvdpau1:i386 (>= 0.2) was not installable without removing the previously mentioned apps. Afterwards, the apps could be reinstalled without any issue. From what I can see, they're the same version that I already had installed previously - but possibly with the difference of one dependency.
Issue solved. User error (although the user does not know when or how this happened).