Opening shared files via Nextcloud-App only in pop-up

For this issue, I compare the Android app with the iOS app:

In the Android app, when I tap on an odt file (or other editable format) that was shared with me via Talk, the file opens directly in the connected Collabora and I can edit it just fine.

In the iOS app, I have to select it directly with a long tap, then choose "Open in nextcloud" from the context menu. That also works, but the file is opened there in a popup. I can't edit the file from this screen pop, because Collabora also opens in the screen pop - and therefore doesn't use the full width of the screen.

I would prefer if the file is displayed directly in the Nextcloud app - without popup - or alternatively, the connected Collabora can be opened directly from the Talkapp, just like in the Android app.