Nothing has shared a new Phone 3a teaser. The image shows what appears to be a dedicated camera button, somewhat similar to what's available on the latest iPhone 16 series.https://www.notebookcheck.net/Nothing-Phone-3a-teaser-hints-at-borrowing-an-iPhone-16-series-camera-feature.956208.0.html
Ah yes, Apple has invented a camera button now too.