Two more examples on better accessibility labels for abbreviations. "4 days ago" is better than "4 D", with a RelativeDateTimeFormatter and a spellOut units style. "Monday" is better than "Mon", accessing the weekdaySymbols from a Calendar.
Some useful links:
Relative Date Time Formatter: https://developer.apple.com/documentation/foundation/relativedatetimeformatter
Units Style: https://developer.apple.com/documentation/foundation/relativedatetimeformatter/unitsstyle-swift.enum/spellout
Weekday symbols: https://developer.apple.com/documentation/foundation/calendar/weekdaysymbols
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Sometimes you can create your own accessibility elements from scratch to group elements too. Perhaps because they're not contained in the same superview. You can combine these elements' frames and provide a suitable accessibility label.
You can add an observer to listen for changes in the content size category, in case it is more convenient than overriding traitCollectionDidChange(_:).
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
