They seem to already be going in that direction, judging by the changes in Gatekeeper and software signing on macOS in the recent years. Whether that increases privacy and security is debatable, but they do seem to be advertising it that way.
And they do have a VPN-like offer. It’s even better than a VPN, but I don’t have the details on hand (called Private Relay, search it up). Requires an iCloud+ sub though).
