I agree Deryk. For me the panning sounds dramatically different with phones. My process, FWIW, is to mix with our KRK’s and then listen on our larger living room system that has a sub and on our mono HomePod. If it sounds “good” on all them I stick a fork in it.

One caveat is that with so many folks listening nowadays with earbuds I may well be missing something needed. Dunno. And, BTW, did I mention my old ears are shot? smile

Bud