I couldn’t immediately see a link to the actual EU archive in that article, for reference I think it is this one : https://wayback.archive-it.org/11980/20200131192225/https://blogs.ec.europa.eu/ECintheUK/euromyths-a-z-index/

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All checking is done locally on your machine from a hashed list of “bad” domains, your visits aren’t sent to google. You can get the full details here: https://support.mozilla.org/en-US/kb/how-does-phishing-and-malware-protection-work

Copper will still be used, its just the traditional analogue phone signal delivered over the copper that is stopping. New (and changed/upgraded) users will instead receive a digital phone service, effectively over broadband (which can still be delivered over copper lines).