Today’s update to macOS Tahoe (26.0.1) resolves an issue in apps where AutoFill for Mac apps could make apps slow down over time due to improper handling of event taps, causing them to accumulate over time. People particularly noticed this in Chromium-based web browsers and Electron apps

Performance should be better now, but if your Mac app will never, ever benefit from offering AutoFill of security codes received via Messages or Mail, the right way to do it is this supported Info.plist key: https://developer.apple.com/documentation/bundleresources/information-property-list/nsautofillrequirestextcontenttypeforonetimecodeonmac