FWIW the 60fps issue was introduced in Oblivion (it didn't exist in Morrowind) and that was because of the physics integration. However that is an integration i

FWIW the 60fps issue was introduced in Oblivion (it didn't exist in Morrowind) and that was because of the physics integration. However that is an integration issue and something they have actually fixed - in other games (e.g. Skyrim VR). Similarly with widescreen support, there isn't really an issue with it, you can use any resolution by modifying configuration files but they just... do not bother to polish it up. (note that any bug that can be fixed with normal mods isn't really an engine bug but a content bug - though some mods do work by hooking the engine executable)