Is there a reason that you do not want to use this card? It offers the highest grocery reward of any that you already hold and use, and it doesn't seem worthwhile opening a new card for a slightly higher reward on less than $6,000/year spend. If you have a Chase Freedom card you could use it for the first quarter of 2022.
Dunno, I tended to prefer points over cashback, but I'm swimming in TYPs right now. Also Amex OBC is 5%, slightly more than 4.5%. And my P2 won't use mobile wallet, though I make most of grocery purchases.
As for Freedom, I MS them every quarter. Have 7 of them.