Didn't older Android versions have the ability to make notifications for a particular app be silent but still visible? I miss that feature, and currently want it for Google Fit. That I met a fitness goal doesn't need to interrupt me. I've now disabled Fit notifications entirely.

In Android 9 settings I can configure notifications per app. Some apps have a single "Allow interruptions" switch, other a checklist of notification categories where long-pressing gives more fine-grained control. (Yeah, not really discoverable…)