this is whats confusing me. its not on mine. I have watch os 6 on my AW3, and the latest beta of Catalina on a 2017 imac, and I am constantly getting admin dialog boxes, mainly for every app being allowed access to removable drives.
I was expecting my watch to be able to unlock it, and it to be easier than in Mojave, but in fact its more annoying. the dialog box also asks my username so I have to type that, tab, type password, and no mention of allowing me to use my watch.
the only time my watch has done anything for my mac since installing, is when my mac is locked waiting on my password, and that only happens when I log in from work with teamviewer, when I log back out it has always then put my mac locked asking for password, and I noticed yesterday when I came home that the minute I walked close to the mac it unlocked.