Time to replace a CAT?

Hi all,

I've been fighting a p4030 (Bank 2 below threshold) code for the past few months on my 2019 2.7l with 131k miles. I did just replace my plugs and coil packs due to some misfires, hoping it might clear up everything. I've driven about 300 miles since replacing everything. No misfires per Mode 6. I also ran some premium gas with cataclean through a couple tanks seeing if that would do the trick.

Is there anything else in Mode 6 data that would lead anyone to believe it could be something other than the cat?

I did have the front bank 2 sensor replaced 2 years ago, but I remember getting a code specific to a sensor failure itself. So, I'm not sure if it could be another sensor or not.

Would there be any other diagnostic steps to take other than replacing sensors?