Convert "bind camera to marker" to Sequencer scene-strips in the Blender Video Sequencer - VSE
Install the add-on: https://github.com/tin2tin/Camera-Markers-to-Scene-Strips/raw/master/CameraMarkersToSceneStrips.py
Have the Cameras and bind-to-Markers in the same Scene as the Sequencer.
Select: VSE strip editor > Header Menu > Add: Marker Cameras
And your cameras will show up as Scene Strips in the Sequencer.
Tutorial video: https://www.youtube.com/watch?v=HhSEV8aBnGg