I should’ve posted about this a while ago, but I totally forgot.
If you got your Chase BA card a while back, it may still actually earn 1.25X Avios on regular spend. This may not mean much with the impending devaluation of Avios, but it might be useful for some people.
To check, log into your Chase profile and check the rewards details for your British Airways card. It should say pretty clearly what its earning structure is.
I’ve personally verified that I still earn 1.25X.