He fixed his variations. Instead of (6... Bb6 is better i think) , he wrote proper nested variations:
[Event "City Open"] [Site "Chess Club"] [Date "2025.03.15"] [Round "1"] [White "Leo Zhang"] [Black "Marcus Thorne"] [Result "1-0"] perfect your chess pgn
[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Leo"] [Black "?"] [Result "*"] He fixed his variations
He emailed it to Elena. The subject line: “Perfected.” perfect your chess pgn