New Special Chess Moves

Chess already has a couple of special rules like castling and en passant, and adding a few more in that same spirit could make the game even more interesting. Here are two new rules designed to add variety and fresh options, while making the game slightly less solved and predictable. Here are two ideas I had for adding new special moves to chess.

King-Queen Exchange: On your turn, you can swap the positions of the King and Queen on the board. Both the King and Queen must be on their original starting squares (E1 and D1 for White, E8 and D8 for Black), and neither piece may have moved prior to the swap. The King cannot be in check before or after the exchange. Like castling, this move can only be performed once per game. This move does not forfeit the player's right to castle.

Royal Decree: The King can move two squares in any direction in a single turn. This may only be used once per game. The King cannot be in check before or after the move, must travel over empty squares, and cannot capture pieces during this move.
I came up with this about a year ago and want to share it to see if anyone thinks it would be a fun addition to the game. Would love thoughts and feedback. Thanks 🍺

1. For example, white could spend 1 turn to swap their King from E1 to D1 and the Queen vice versa. This would add an imbalance and make more potentially interesting outcomes or scenarios.
2. The King could make a more significant play either in the early game, mid-game, or late game to change position more dramatically. For example, go from F2 to G3 to H2, around white's pawns to find a better defensive position

I think the royal decree would be good if the king hasn't moved

Royal decree sacrifices the ability to castle which moves the king two squares AND moves a rook to protect it. I guess you didn't specify that royal decree can't move through check so it's not *strictly* worse than castling. Would castling prevent you from using royal decree because I think if so, castling would be used about 80% of the time instead.

Unless you're saying that the king can move twice in different directions in which case that's much stronger, though still might not be worth losing the ability to castle doing so in the early game.

Hi