@SXCohen Got an official answer from Suunto; just in case someone else’s interested here it is :
"I am sorry to inform you that the Freediving mode and Mermaid features are not currently available in the Suunto app, but they are accessible on the watch itself. Additionally, I want to let you know that you can view the depth data while diving by selecting the specific mode on the watch interface. "
I’d like to push to get an update on the App (and if necesssary on the watch’s firmware) so that becomes possible.