Not sure if this is targeted; I got an email:
Earn up to $150 cash back on online shopping purchases through December 31, 2019. That's a 6% bonus on up to $2,500 in purchases—and it's on top of the rewards you already earn with your credit card.
Simply click on the button above to activate your bonus offer.
[...]
The Online Shopping Bonus will post to your account as additional cash rewards within 12 weeks of the end of the promotional period.
So, if online is my 3% category, here it's 9% back? Any conclusion on online travel purchases?