Issues with Nextcloud 23.0.3 and Nextcloud Office 5.0.5

It is noted that the Word online application does not allow merging cells, and if a document generated on desktop with a merged cell is uploaded, it cannot be split.

At the same time, if the table inserted in Word contains a row with merged cells, it does not allow rows to be deleted and the same happens with columns.

If a table is inserted, it allows you to insert rows and columns but does not perform a specific cell treatment.

Is there any functionality missing?

Miguel Ángel Leikin