App nextcloud iOS: browser is not supported

[fakendry]

Good morning, I have a problem with the app on iPhone (iOS 17.4.1 and Nextcloud version 28). However I tried to connect the app to the nextcloud demo server “https://nextcloud27.our-servers.de/” (Username: user password: demo123) and the app works perfectly.

The problem arose after reinstalling nextcloud.

Steps to reproduce

1. Install or reinstall app nextcloud on iPhone
2. login on server
3. error browser the app interface does not open but rather the web interface

Expected behaviour

Expected native app look and feel.

Actual behaviour

App thinks it's a browser, and shows an error that it's outdated.
Additionally, login credentials are not saved, closing and reopening the app prompts for login again.

Screenshots

the screenshot is the same as the one published in this other issues
nextcloud/android#11768

info

iOS version: 17.4.1
Nextcloud iOS app version: 5.2.7
Server operating system: Debian GNU/Linux 12 (bookworm)
Web server: Lighttpd
Database: 10.11.6-MariaDB
PHP version: 8.2.18
Nextcloud version: 28.0.5