I’m afraid there have been no changes to this behavior - Anki has always performed this way, and an iOS update would have no effect on how templates are handled inside Anki. There is likely some other explanation - perhaps the cards you reviewed in the past had only text or only sound in the Extra field, perhaps autoplay was off because your mute switch was on, etc.
If you wish for the text in Extra to be shown on the question side, and the sound in Extra to be shown on the answer side, you’ll need to duplicate the field, then use Find&Replace to remove the audio. After adding an AnswerAudio field, you can use ChangeNotetype to map the existing Extra field to both Extra and AnswerAudio, so it gets duplicated. Then you can remove the sound tag from the Extra field. How can I remove audio files on front for all cards?