I'd like to report this here, because it is related to CIQ, though I think it should probably be reported to the firmware teams as well (but unfortunately there's no way a user can report it via customer support, as at the moment they hear CIQ they drop the line and enter into deep hibernation state...)
1. bug: after I pair an ANT+ heart rate sensor from fr965's system sensor menu (choosing the "IQ" line) I see it's paired, but the Connection Type is misleading: Open (BLE). This can't be true for 2 reasons: 1. the same device is already paired via BT to the watch (not to a CIQ app), and I only removed the ANT pairing before I performed this test, 2. because my CIQ datafield ( https://apps.garmin.com/apps/7c83d402-4b68-4f0a-b167-7139788a19b3 ) doesn't have any bluetooth related code, only ANT+
this happens on fr965 27.09, fr255 27.09

I'd like to propose 2 improvements:
2. it would be nice if we'll be able to see which CIQ app it is paired to. I imagine this to be like other information we see for the sensors, when we enter into the menu of the sensor, we see it's name, connection type, etc. I think the CIQ app should be added there (including the launcher icon)
3. in the main Sensors menu of the watch I see an icon before each sensor, that hints about it's type: heart / shoe / thermometer, etc and it's an IQ icon for the sensor that was paired to a CIQ app. While I understand why it's "IQ", I think it would make more sense to display the launcher icon of the app.
See some more info in this thread: RE: System 8 sensor pairing for ANT (from the linked comment)