It's auto activated when you activate Q4 categories, but still unclear if it is for Flex only or also Freedom.
I think maxing twice is the better deal so you get your base 1% twice.
For quarterlies you get your base 1% + your bonus 4% = 5%.
It's the same with this promo, base 1% + bonus 4% = 5%
But, if you're already getting your 1% base on the quarterly category you do not get it a second time so 1% base + 4% quarterly + 4% bonus = 9%.
For that reason, I'd max a non-quarterly category so you get Quarterly: 1% base + 4% quarterly = 5% AND Promo: 1% base + 4% bonus = 5%
Reading the FAQ Drugstore might be a good one to max. 1% base + 2% drugstore + 4% bonus = 7%
https://creditcards.chase.com/freedom-credit-cards/flexfaq/topspendoffer
Assuming this is for Freedom as well I'll max Paypal/Walmart on my Freedom with regular spend, and also use the Freedom for grocery to just over my PP/WM total to ensure it's my top spend category. And if it's not for Freedom maybe I'll consider PC'ing to Flex. With that in mind, any reason to hang on to the Freedom vs PCing it? And, what happens with quarterlies when you PC? Would I be able to get them again on the Flex?