I don't know of any country taking a complete political stance against the idea of the digital euro, probably none is really concerned as with a term of two years for testing and another five years in most cases they will not still be in power.  Of course, with the amount of information we have daily is easy to miss things so who knows, there might have been some but the usual naughty kids of the UE have no saying in here, countries like Hungary not being part of the Eurozone so I don't know who would really go opposing and for what reason.
Maybe Cyprus and Malta as this would bring a lot more control over their banks and we all know there are a lot of things going through those acting like gateways in and out of the EU, but, as I said, nothing that I know to date.

Anyhow, 7 years is a lot, we might not even see a CBDC by then, who knows what great idea they will have by then.