The CRFB attributes 4.7 trillion to deficit under Biden but the HBC attributes 11.6 trillion; what is the practical truth?

I would like to say I don’t have any appreciable knowledge in economics but honestly I have no knowledge in economics. I think maybe a slightly above the median voter’s understanding of economics, make of that what you will.

I’m writing a Quora answer on a sociopolitical topic but I found myself needing to briefly mention the deficit accumulated under Biden- I don’t know if an objective answer exists.

I had used the CRFB figure of 4.7 trillion in conjunction with >700 billion already added under this Trump administration in previous things I’ve written but I was double checking and saw the HBC reporting 11.6 trillion.

left and right hands palms upward alternating up-down-up-down gesture

I want to be the most accurate, with the information I use. I’m also a little curious on what could underlie such a vast disparity between the claimed amounts?