Hello Carl, this is one of the biggest issues we have using only office. Files are being worked online in Nextcloud and offline in word for example and they is no way to know or prevent data loss. There are not even conflict files generated anymore, content is simply lost. If this is not tackled we cannot use OO in the future. Data loss is unacceptable.
Thank you Carl for your reply. From your answer i cannot deduce if this is an issue you are looking to implement or fix in the next update. Can you give us any idea about when this will be tackled? We have a license with OnlyOffice.