Thank you for following the instructions.
Yes, indeed this is the correct output, it indicates that your original network is Vodafone IE and shows that you are currently connected to Vodafone GR. The only issue is that on the WEBUI it shows Vodafone IE(the main network), this is currently the functionality.
This is due to various reasons, mainly due to the Quectel modem commands. Currently, such fix is not planned as the functionality itself is not affected, however, we might expect this in the future for convenience purposes.
I do sincerely apologize for the inconveniences caused and can assure you that your router is working as intended, it is roaming.