Some apps have built-in timers that work with green screen effects:
The green background acts as a placeholder that video editing software can make transparent using a tool called . Green Screen Timer
Streamers overlay timers to show countdowns for matches or "be right back" screens. 3. How to Use One in Your Videos Some apps have built-in timers that work with
Place the timer clip on a track above your main footage. Green Screen Timer
Resize and move the timer to a corner of the screen so it doesn't obstruct the main subject. 4. Integrated App Features