send both even if they have same information

I submitted both

tax transcript

send what they ask. tax transcript is more detailed which what they want

I don't know why they asked you for the last 3 years transcripts if the i864 says the other 2 years transcripts are optional and the one that matters is last year's

send 3years of tax transcripts 23,22 and 21 also the same for W2

Last 3 yrs transcript and W2s are fine.

Thanks all