Essentially Zog 2, the direct continuation from the first movie/book.
Also accurately adapted, but with a bit of additional depth added that the first movie didn't have.
In order to avoid spoilers, the premise is effectily: A stubborn old fool who'd rather choose death than to believe in someone who he should be holding dear.
Zog & co. Solve a series of problems around the unnamed, unexplored world. These characters hardly speak. Their voices are fine, especially if you consider the thousands of voices in our reality.
A dragon and a knight having a fight seems hardly a problem, if anything, a knight is finally being a knight, and the dragon is... well, did you not see the first Zog and it's opening few minutes with what would be the idea of a dragon chomping a human in half?
Both movies have a pleasant musical score and theme.
Visually, it's the same, there's no loss.
I've seen the most Karen of complaints, though. We've got "too much fighting", someone didn't like the unicorn's horn operation (it's a unicorn, not a bicorn), and other such.
I can find myself rewatching both Zog stories in the future, simply because it's pleasant. I just wish they were a bit longer. Despite the title, it simply doesn't have enough Zog in it, while the first movie ended with the similar problem, not enough Zog, the title character. Still, we have to remember it was essentially done for free, a TV film for the holidays.