This Reddit comment I saw the other day sums it up:
"The simple answer is that HHH has refused to allow a number of big name matches to occur since 2022, for inexplainable reasons.
Everybody thought that he was saving Cody Rhodes vs Randy Orton for something huge. First SummerSlam, then RR, then even Mania. They teased it with Orton telling Rhodes that he’d be coming for the title, with their alliance, and with Orton constantly eyeing down the title when in the ring with Cody…and then it just never happened.
A similar situation occurred with Reigns. Fans were clamoring for Roman Reigns vs Randy Orton in a singles match for the WWE title, after Orton returned at Survivor Series. They just chose not to, and now the opportunity to have Reigns do a match with Randy Orton during his legendary title run is gone.
Roman vs Seth, Roman vs Punk, Cody vs Punk, Cena vs Punk, Roman vs Orton, Punk vs Orton, Cody vs Orton; these are all massive money matches that WWE has had countless opportunities to do since 2021. These men won’t all be on the roster together like this for much longer. But they’d rather pitch Jey Uso vs Logan Paul for some reason."