I am sailing in 55 days and when I look at Dining, Cunard tells me: As your safety and wellbeing is our top priority, we have enhanced measures in place, including reduced capacity online dining reservations. You will be able to make reservations from 28th October 2022. [That's 2 weeks before our sailing]
I don't know if the Lido dining concept has changed recently, but the description and sample menu which I can see is very different to the Bamboo, Aztec and Coriander menus which are referenced above. If the sample menu is reflective of what will actually be available then it is not themed by cuisine - I've downloaded and attached what I can see.
dinner_lido_menu_02a.pdf