On the topic of Obsidian, I recommend the FOSS tool Syncthing to sync/fileshare Logseq, Obsidian or emacs org mode files between devices.
https://f-droid.org/packages/com.github.catfriend1.syncthingandroid
Note, Syncthing-fork is the actively maintained app on f-droid, not the original app called Syncthing, at least as of this comment.