Choosing uniquely differentially expressed genes

Question

[Triple Nipple]

Hello,

I have two DESEQ2 analysis results between samples. The first one is for a feature A (in gtf), and the second one for feature B. Both Deseq2 analysis are done between the same samples.

I want to get a list of genes that are differentially expressed for A, but are not differentially expressed for B.

Is there a better or more correct way of doing this rather than assigning a threshold adj-pv ?

Thanks!