I recently updated my OnlyOffice docker image to v5.5 and Nextcloud to v17.0.4. After the update, I’m unable to edit my documents through the onlyoffice integration app on my mobile device, stating that the feature has been removed from the open source version.
Files can be opened for viewing only. Mobile web editors are not available in the Open Source version.
I wasn’t able to work around this via Firefox’ request desktop site feature (speculating: is even tracking involved?).
The only workaround right now is to downgrade the docker image:
Guess I’ll have a look at Collabora, soon.