https://www.movavi.com/tools/split-screen-video-editor.html
Split-Screen Video Editor – Split Videos for Free
Wondering how to make a side-by-side video? Use the handy split-screen video maker by Movavi!
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https://community.adobe.com/questions-725/premier-elements-15-export-produces-split-screen-video-1318283
Premier Elements 15 export produces split screen video | Community
Exported video shows an additional 20% of the left side of the video appearing on the right side of the exported video. So, essentially two videos -- on...
split screen videopremierelementsexportcommunity