Apprehensive_ac

This morning my iphone 11 was dinging, the battery icon was flashing between black and green and there was a green line around top right of screen. It has stopped now and the battery icon is black. Any idea what this means?

My reminders aren't vibrating. I recently updated to watchOS 10.1.1.

I have adjusted every setting I can find. Am I missing some or is this a new feature?

I get calls and they are being answered on my watch. Sometimes this is convenient but I would prefer not to have this happen by default.

I've checked every handoff setting I can find on my watch and iPhone but not been able to disable handoff.

Anyone know what I am missing?