All the accessibility capabilities you can check for, have counterpart notification names you can observe in case the user changes its preferences while using your app. https://x.com/dadederk/status/1577435144129892352

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You can add an observer to listen for changes in the content size category, in case it is more convenient than overriding traitCollectionDidChange(_:).

You can add your Accessibility Shortcuts to Control Centre too. One more quick access point and one more reminder to get you testing often and quickly. How to enable Accessibility shortcuts: https://x.com/dadederk/status/1583519154165800960?s=61&t=_fK9Muzu2MyFEeJLVQZcJg
Guidelines from Apple: Begin with a verb that explains the results of the action. Avoid using the imperative form of a verb because that can make it sound like a command. Don’t include the action type. Don’t include the control. https://developer.apple.com/documentation/objectivec/nsobject-swift.class/accessibilityhint