Typing Clicks go from normal to loud ?

Hi all,

I’ve recently bought an iPhone 16 Pro and noticed that sometimes, whilst composing a text message , or more commonly, using Chat GTP, my keyboard clicks go from my normal setting to really high for no apparent reason whatsoever. Sometimes they change back to normal, but i usually have to turn the phone on to silent mode as it get so loud and disturbs those around me!

It’s a really frustrating issue which I never had on my old iPhone. Can anyone kindly advise? Thank you.