Posting this mostly for posterity:
I have a PCB that references a 3D model ${KICAD6_3DMODEL_DIR}/Package_SO.3dshapes/PowerPAK_SO-8_Single.wrl
(old kicad_mod file) but the same file doesn’t exist amongst the models included with KiCad 7.
I checked the 3D packages repo but there’s no such file there.
However I did find this in the git history. The filename doesn’t exactly match.
$ git log --all --full-history -- '**/Vishay_PowerPAK_SO-8.wrl'
commit b45678258ac579af6a9dece63aced58cf4e546d1
Author: Flaviu Tamas <me@flaviutamas.com>
Date: Tue Dec 6 13:00:57 2022 +0000
Rotate Package_DFN_QFN.3dshapes/PQFN-8-EP_6x5mm_P1.27mm_Generic by 180°,
rename from Package_SO.3dshapes/Vishay_PowerPAK_SO-8
So I will use ${KICAD7_3DMODEL_DIR}/Package_DFN_QFN.3dshapes/PQFN-8-EP_6x5mm_P1.27mm_Generic.wrl
.