Propaganda is when a state or non-state actor gives public expression to ideas that are not factual or are debatable while silencing those with differing viewpoints. Then that is propaganda.
By this definition Canada, in respect to the Russia Ukrainian war, is using propaganda to garner public support for Ukraine.
Also our government comes close to propaganda when expressing support for Israel over Hamas.
Terrorism is the inherent outcome by the weak in the face of appalling injustice by the mighty.