Probably depends if you are going to use external Identity provider or not, in my case I want to use it authenticating with Authelia - which NextCloud can handle but I coulndn't make it to work properly with OpenCloud. Those issues seems to be related:
- https://github.com/opencloud-eu/opencloud/issues/1592
- https://github.com/opencloud-eu/desktop/issues/246
- https://github.com/opencloud-eu/desktop/issues/217
Edit: if you not using external Identity Provider you should be fine though