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Microsoft's 'Recall' feature can't be uninstalled after all
(mashable.com)
This is a most excellent place for technology news and articles.
It's not a 100% guarantee, they can easily bypass your DNS by either just connecting to another DNS sever over plain, unencrypted DNS (UDP on 53), or use something more sophisticated like DNS-over-TLS or DNS-over-HTTPS.
You can reroute unencrypted DNS requests to your Pi-Hole using a firewall like OPNSense, but things get more complicated with DoT and DoH