I’m using the remotely save plugin to sync between a desktop and an iPhone, which works fine. Everything syncs.
Until recently, I had manual access to the synced vault via the iOS Files app. This is no longer the case for a few days, and I’m not sure if that’s an iOS or Obsidian thing. A quick test with Syncthing produced the same problem. Syncing a folder between my desktop and my iPhone works, but the folder is not accessible through files. On the other hand, I do have a webdav client from my cloud-provider, and their stuff shows up in the Files app.