Bridge & your devices · Collab Sync
If I delete a file in a synced folder, is it deleted on the other Mac?
Short answer: Not by default — a deleted file reappears from the other Mac. For one-way syncs you can opt in to carrying deletes across, and even then they go to the other Mac's Trash and large batches wait for your review.
Not by default. A file you delete on one Mac simply comes back from the other, so an accidental delete can't wipe your other Mac.
For a one-way sync you can turn on Also remove files on the other Mac when I delete them here. Even then, the file goes to the Trash on the other Mac (recoverable), never erased, and a large batch of deletes is held back for you to review.