Render

Render makes one file from the whole timeline. The file goes next to the first video clip as name - interpolini.mp4, or to the Render folder.

After a render, Copy file puts the file on the clipboard.

With File > Export each clip separately on, Render makes one file for each video clip, named after that clip. These files have no fades and no images.

Lossless cut at the top of the panel copies each clip to its own file with no new encode. Cuts go to the nearest keyframe. Not kept lists what a copy loses, such as fades or speed.

Render folder in Settings > General sets where files go. The default is the folder of the source clip.