Likely an unpopular take, but I switched to the "Natural text editing" preset in iTerm2 to get editing shortcuts that match the traditional macOS ones. It has the advantage of just remapping to the normal control sequences inside terminal apps, so you basically get this functionality everywhere without needed to change it in multiple places/worry about readline support/etc. It isn't perfect (I have rarely needed to enter sequences manually that then are remapped), but I find I have used way more command editing since its part of my muscle memory.

https://pliszko.com/blog/post/2021-10-31-natural-text-editin...