This was prompted by the recent All Quiet on the Western Front.
The short answer is yes, it's fairly accurate that fighting did happen right up to the minute when the armistice started, as u/Georgy_K_Zhukov describes here. The one difference between these attacks and the one portrayed in All Quiet (as I understand it, I haven't seen it yet) is that the attacks were almost all by Entente/Allied forces, not Germans.
The one thing to keep in mind is that the armistice was just that: an armistice, ie a temporary ceasefire, not an end to the war. The armistice had to be renewed multiple times, and as it turned out the Germans were in no condition to resume the war, so November 11 was effectively the end of most of the war's fighting (not exactly all, and military actions like the blockade of Germany continued right up to the signing of the Versailles Treaty in June 1919), but this wasn't necessarily immediately obvious on the ground on November 11.