Actually, my favorite is telling Siri to give me my update. I don’t understand why it is that when the news comes on that podcast is so much louder than her voice was though.
I had that issue with my Apple CarPlay/Maps, while music was playing thru my car (not my iPhone). It took a few months but I finally figured out to adjust the Siri voice, while it was playing,
with my car’s volume control, to match the music’s level. You might try adjusting the volume on your speaker, when the news comes on (and I don’t know if you’re using an Apple speaker, or an Alexa device like I am, or what).
One issue I have with my own news “Flash Update” (again, this is amazoid stuff and not Apple) is that my NPR News is just fine volume-wise, but then the BBC News that follows is about 40% quieter, and that’s irritating; your inquiry has me thinking about adjusting the BBC volume with the physical volume knob, see if that equalizes the two. I’ll try this tomorrow morning.