Dave Meltzer of the Wrestling Observer reports that Bryan decided against going to Saudi Arabia prior to the murder of journalist Jamal Khashoggi. Bryan reportedly did not agree with how Saudi Arabia treats homosexuals and viewed their decision on Sami Zayn, who was banned from the Greatest Royal Rumble for being of Syrian ancestry, to be racist. Robbie Fox of Barstool Sports first reported news of Bryan refusing to attend the event.

Bryan was part of the Greatest Royal Rumble in April in Saudi Arabia, but reportedly had little to no knowledge of the situation. Once he arrived and saw the mistreatment and propaganda, he determined that he could not go back under those circumstances.

https://www.fightful.com/wrestling/report-daniel-bryan-s-decision-not-go-saudi-arabia-was-over-their-treatment-homosexuals