You’re not, but like aospMusic, aospGallery is not maintained anymore: mostly sdk adjustements for new android versions. Did you notice that buggy edit doesn’t triggers other apps, like SimpleGalleryPro embedded or this possible stand-alone photo editor ?: Add PhotoEditor App (#993) · Issues · F-Droid / Requests For Packaging · GitLab
In past Oreo, I remember some teams with such edit function: CarbonRom, halogenOS… ; nowadays Lineage, Omni and all others did gave up with edit possibility versus enhanced video/equalizer controls (that we don’t miss, thanks to stand-alone vlc).
Coincidentally, Google monopoly with GooglePhoto & GooglePlayMusic (+ android One) is breaking aosp components development: today, who is remembering Open Handset Alliance concept ?..
Give a try to Treble rom (xda…), conversely to custom roms, they don’t break OEM’s /boot & /vendor setup: only #adb flashboot.