In previous version (around version 12 and before), when workout was stopped and I waited 2 minutes I received a pop up message of my Recovery Heart Rate. However now I need to go to the recovery heart rate menu and wait there to see the RHR.
(reported in 14.08 as well: https://forums.garmin.com/beta-program/forerunner-255-series/public-beta-bug-reports/i/bug-reports---14-08/no-recovery-heart-rate-notification-after-workout-pause)
On the below link there are pictures of the pup up message I am talking about: