I'm finding old WearOS designs updated to work with WearOS 3 and Samsung watches are better than designs currently created for Samsung Galaxy Watch 4.
Seems WFS designs are limited on features and options and don't work with HeartRate or GoogleFit.
Switch to older apps that have been upgraded and they work great allowing access to watch sensors and GoogleFit. Only option not working is Samsung Heart Rate via Samsung Health which everyone waiting for Samsung/Google to fix