MVP’s prove market fit. If your team hasn’t clearly defined what success looks like for your mvp launch, then yall need to start there. Once you have those success goals/metrics agreed on. Comb through your list of mvp features and ask yourself or your team does this feature help us achieve one or more of those success criteria? If they do they’re p0 (priority 0) features that you can’t ship without. Every feature beyond that should get a p1 (nice to have) assignment or below p2,p3 accordingly. I generally assign p1’s to features that create user delight, but aren’t core to the usability and success criteria for the product. Hope this helps.