Is Collabora sending formatting data in WOPI POST Request on save?

I have setup paperless to save the data after editing in Collabora, I have also put the WOPI endpoints in place. On Inspection of the data coming to the DB of paperless, I cannot see any data regarding the formatting, There is only plain text, tried using different formatting such as bold, italics etc.

Can anyone please guide me here ?

Thanks in advance

I uploaded a screenshot for reference