I must defend Mihawk in this one, similar as I defend Big mom and her crew in WCi and call people out for calling her meme.
Similar as to Big mom, Mihawk had really the badtime in MF arc, not because he was weak but he was so strong so Oda need to hold him up and nerf him, the same happen to Big mom for same reason in Wci arc. She was too much for the strawhats to handle her so what Oda did to her? Nerf her so hard with the bs wedding cake and let her stall by the weakling strawhats, people call her meme for the end of the arc with was kinda unfair because the same Big mom also one shot Boundman,Judge,Niji,Yonji, two shot Queen and fight equal with Kaido. At the end when we see her against Kaido we all know, she was really nerfed during the arc and Oda show her bad even though she was a monster in terms of powerlvl.
This kinda happen also to Mihawk,
Oda need to hold up a top tier and he let look Mihawk bad and nerf him hard to people like Vista,Jozu or Sir Crocodile could do something against him.
As
@Monet said it wasn´t his arc, he was just their because of his position as Shichibukai but Oda didn´t really give much focus on him after his small clash with Luffy. Im sure in the moment when the focus lie on Mihawk, he gonna be same as Big mom vs Kaido, beeing able to fight equal against other top tiers and also showing insane feats.
Similar like Mihawk I have big hope for Big mom to getting far better threatment during wano, the same I hope for Mihawk later in his own arc when the focus lie on him and he getting the chance to shine.