I have been thinking about the battery widget some more. Having the battery widget display the phone status is redundant. The battery widget on the phone should offer the user which Apple account synced battery devices to display individually or collectively.
On my phone, I want to see the watch battery status because the device is active on my wrist. I don’t need to see phone status displayed, when the phone is already showing the status. I also don’t need to see empty widget slots for my AirPods Pro’s and my Powerbeats Pro, if they are not actively being used. That causes the widget to take up more space then it really should.