Created attachment 461689 [details]
VoiceOver cursor versus up/down keys in list content in Safari.

I am using macOS Monterey 12.4 and Safari 15.5.

Attached is a video showing something odd. I've tried to include description in the video for those who don't access video visually.

I may be missing some knowledge but there appears to be two cursors: the voice over cursor and another cursor that moves with up and down (when quick nav off). The video shows them both. They also behave differently with lists, which I demonstrate in the video.

Problem:
With VO + left/right, VoiceOver announces entry into the lists. 
But with just up/down, the cursor doesn't announce entry into the lists, just the text of the lists, line by line.

Could someone also explain this second mystery cursor. It's hard to find documentation about it.