Using the voiceover function of iPhone 15 with Libre 3 plus

Close friend with Type 2 diabetes has gradually become nearly totally blind and can no longer do finger pricks or read the screen of his iPhone 15. So he needs to use the voiceover function of the iPhone to hear what the Libre 3 would be transmitting to the app. Does anyone have experience using the Libre 3 with the iPhone’s voiceover feature? Anything else he should know about pairing a Libre with an iPhone 15, like whether he will have to disable any iPhone capabilities he might be using or otherwise modify his preferred iPhone settings?