Even though Monkey D. Luffy has attained a new form, Gear 5, and has mastered all kinds of Haki in One Piece, Shanks is still a step ahead.
One piece: Speculating on the role of Luffy's Gear 5 in the
Would Luffy be able to beat Marineford Whitebeard with Gear 5? - Quora
One Piece: Why isn't Luffy using Gear 5 in Egghead Arc? - Dexerto
Can Gear 5 Luffy beat Old Whitebeard? - Quora
One Piece's Luffy vs Dragon Ball's Goku: Can Gear 5 Beat a Saiyan?
People really need to remember that Luffy's power is 100% earned
Does Luffy kind of feel too overpowered for you? : r/OnePiece
Gomu Gomu no Mi/Gear 5 Techniques, One Piece Wiki
Gojo vs Gear 5 Luffy who wins? - Quora
Gomu Gomu no Mi/Gear 5 Techniques, One Piece Wiki
People really need to remember that Luffy's power is 100% earned
Gear 5 Luffy is Still Not Strong Enough to Beat These 5 One Piece
One Piece: Why is Gear 5 so important? - Dexerto
All Of Luffy's Forms, Ranked