I was digging around the macOS 26.2 disassembly and it appears they fixed the autofill controller resource usage issue. They also yeeted my previously found workaround (NSAutoFillHeuristicControllerEnabled), probably because too many apps disabled it.

This is probably a good thing though. It means that you can keep that undocumented setting set to workaround the earlier issues, and your app gets autofill on fixed versions.

If you want to disable it, there are new undocumented config strings, but you can find those yourself in the disassembly :P

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