Why is stockfish saying this is the best move??

Stockfish is saying Kf1 is the best move for white on move number 14 instead of 0-0-0. Can you explain why?

White king will transfer with Kf1-Kg2 when it will be completely safe and you are claiming white's better, if you play long castle you are allowing some counterattack from black with a5-b4 and pawn-storm on the queenside - then the position is unclear

The thing is Black is extended on the queen side and your dark squares are a little bit weak. So castling queen side is dangerous. But since castling king side drops a pawn, I think the computer is suggesting a longer route to connect your rooks.

O-O-O is bad as you are putting king in immediately open "b " file after b4.

To me, Kf1 is also very odd. There are many games in TCEC where SF lost to Lco due to such odd king move. So ,I analyse in parallel Stockfish and Lco in my desktop. It took 2 minutes on my 4 cores for Stockfish to discard that odd move and played

14. Nf3 instead,
meanwhile Lco play Nf3 within a few seconds. (my GPU for Lco is 1060GTX)

Interesting in testing , StockfishNNUe find Nf3 within 12 seconds, but she has equal preference between "a3 and Nf3" switching alternating up to 2 mins.

Kf1 is probably some quiet move. And castle long is bad.