I found that trying to sync (Windows Obsidian app «=» Android Obsidian app) just via a cable would get the files over fine, but would not produce usable results, at least not without a lot more fiddling that I wanted to do. I was hoping that we could simply transfer the folder structure over and just have it work, but no such luck.
Evidently it requires not only transfer, but some kind of transformation that they do in their cloud, and I'm not interested in another cloud subscription, particularly one so specific. (Happy to pay for the software & updates, just not to maintain the subscription and maintain the concern about another connection in the loop)
This was a couple years ago. Perhaps this has changed, or there's now a plugin to make such a bidirectional transfer work?
TIA for any suggestions!