Came here to say the same. The integration with Collabora is wonderful. I used FileRun and FileBrowser with OnlyOffice in the past, and the experience was totally different (a part that OnlyOffice messes with Excel/Spreadsheets pivot tables, or at least one year ago, making it impossible for people to work with them). I understand the hate, but currently, at least for me, is the closest experience to O365 .