I can’t say I have any experience with it, but MPV might handle that as well if queued up from the command line.
How do you que up from the command line?
Here’s what I found in regards to playing files in a specific order. I haven’t tested it to ensure there won’t be a gap between files though.
https://github.com/mpv-player/mpv/issues/4184#issuecomment-466781988
Your preview shot looks great!
Thanks.