Video editing software offers many scene transition effects, but which ones are commonly used in movies and tv shows?
The commonly used transitions are cuts and dissolves. Cuts can be edited in a variety of ways, depending on the storytelling situation, but the straight cut is the most often used transition. Any other transitions have unique purposes, but should always be motivated by the story and used sparingly. The exception to the frequency rule is when a piece adopts a transition as a stylistic device. But you need to approach that with caution, as it can scream amateur.