Do you think that google and other main search engines know who searched for "Byzantine" before the bitcoin genesis block?
Yes.Would the creator of bitcoin search for: "Byzantine" without using Tor browser and/or VPN?
Probably no. I'd expect him to be extremely cautious with his privacy. Tails didn't exist in 2008, but he must have had different user in his computer for this kind of activity. For example, anything related with the "Satoshi" identity would occur there. Coding, forum posting, emails, domain name registration etc.
None of our business, though.
With the presumption that Satoshi is one individual, not a group of individuals, it's not merely probable - it's an assurance.
Although it's just a suspicion, there are people in the community who believe that Satoshi changed his coding style, posting style/habits in the forum, and probably leaving an anti-red-herring by not citing Nick Szabo in the white paper, which Satoshi probably knew that people will be inclined to point to Nick as Satoshi - but maybe Satoshi was actually Dr. Adam Back. He's diverting us.
¯\_(ツ)_/¯
Plus Satoshi coded in Windows? Not in a Unix-based system? That's a give-away that he was very careful.