On Moblie, in File Explorer, above the text. Obsidian shows how many files and folders exist in the vault. When opening Obsidian on Mobile, it would be nice to include a dialog to see status of the sync process.
Being able to tap the n-files, n-folders and have that open a window with the sync-dialog would be enough in my opinion.
I open the app and leave it on while I work so that the files sync instantly.