The Spanish government has a very strong opinion on this:
https://www.techradar.com/news/spain-seeks-to-ban-encryption-leaked-document-reveals
Spain’s vision appeared to be the most extreme, with the nation’s leaders apparently seeing the access to citizens’ data as “imperative” to allow authorities catching criminals in the virtual world.
Spain wasn’t just the strongest fan of the bill, but it also argued how EU-based providers should be ideally prevented from implementing E2E in the first place. Of a similar stance was Poland, suggesting that parents should have the power to decrypt children’s chats. Among other supporters for the Chat Control proposalare Cyprus, Hungary, Croatia, Slovenia and Romania.
There are many more news articles about this.
This is the official position of the Spanish government in the European Council. And it is unchanged for the last years. This is no “personal vendetta” or some secret agenda. Spain is again and again voting against encryption.
Maybe you should google that stuff.