Thank you for suggesting abiword. I was able to configure the default appearance to achieve what I'm after, so I can open up .rtf in abiword and use it one way, and open up other document types in LibreOffice and use it in a different fashion. I think I'd seen reference to abiword when poking around to look for an alternative, but hadn't bit the bullet until now.

I have to imagine you're right, that .rtf is better than .doc, at least. I just read something that said that .rtf was actually also a proprietary Microsoft format and that often stuff will break after a while. But what I read could be totally wrong by now. From my searches I'm not the only person who appreciates a format with a small handful of formatting options as an organizational tool.

In other software news, I tried avidemux, but most of the time what I'm looking to do is cut out and splice sections of video, or occasionally adding text overlays, changing speed, or messing around with the audio for a portion of a video. Opening it up, it didn't look like avidemux offered those possibilities. So on that front I think I just have to keep muddling around with OneShot.