It looked like he tried to copy his tactic from their first fight, but he overdid feints and Ankalaev started checking calf kicks, so Walker was out of ideas and decided to be at least entertaining and memorable.
That capoeira move had zero chances of landing, absolutely anyone could see it from a mile away. But at least it was funny.
He has copied his latest move set, which is why Magomed Ankalaev is used to Johnny Walker's movement a bit, and looking into Ankalaev that Feint when he raised his feet, was superb in kicking Ankalaev in the Groin it also an effect that made Walker defend that for sure Johnny Walker is really great and fast, but Magomed Akalaev feint thinking, and switching to Orthodox was the real thing that made Walker take a mistake,
This would make a lot of sense sport-wise, but I doubt Pereira would be very excited about such a fight. If Pereira is going for the money, his best move would be to go back down to the middleweight and fight the winner of Strickland Vs DuPlessis, or fight Adesanya again (in the middleweight) if rumors of Adesanya wanting to come back are true.
For sure Dana White will give it to him after what he did against Jiri Prochazka and his back-to-back fight against Israel Adeanya for sure that is a big money and because Alex Pereira is a big money for the UFC they will give him the fight he wants and if Pereira can attain 2 belts he will be a bigger start and a walking money for all the challenges he took,