After the latest update for the galaxy watch, I noticed that there is a delay in receiving the notifications on the watch. I use my watch with Huawei P30 pro. Before the update notifications were received directly on the watch.
Have you attempted to fully back up the watch and perform a restart or reset the watch since the recent update?
This article here provides additional information on how to reset the watch: https://www.samsung.com/us/support/answer/ANS00084702/