I emailed Suunto support. They suggested the following, which I did:
Suunto App → Profile → Feedback →
Select the relevant category
Add a short description of the issue
Attach the screenshot if possible
Make sure to enable:
“Send logs to Suunto”
“Send user info to Suunto”
After doing that and replying, they sent the following confirmaiton:
Our team will review the report and investigate the issue. If a fix is identified, it will be considered for inclusion in a future software update.
Hopefully an app update fixes it, or they find the offending spam on the backend and clean it up.