Spoken turn by turn instructions coming from phone during an activity

Hi

During a hike today I was using my Fenix 7X to navigate (by starting a tracked hike and choosing a course I had planned in garmin & sent to my watch).

The navigation was perfect and I got beeps & turn directions on my watch just before each turn (just like i have been getting for almost 2 years on my Fenix 7X) I am happy with that and want that to continue during future hikes......

The issue I have from today is that my phone (an android Samsung Galaxy S22 Ultra) has suddenly started to repeatedly come up with a lady's voice telling me "in XXX yards turn left/ right"

I can't seem to find a way to disable this verbal prompt on my phone, whilst still getting a turn beep & direction arrow on my watch like i used to......

Can anyone help please?