The team has updated the default sound for Teams notifications so it is more noticeable. We are in final testing, with a goal to release the new sound by the end of this quarter.
An error occurred while saving the commentDon Good commented
I agree (to the extreme) about setting individual and more noticeable audio alerts to chats etc. Having a chat feature without a configurable audible notice, let alone a barely audible one, is just not good enough. I love Microsoft, enough that I still pine for a Windows Phone, but on this you're letting us down.