Notifications Not Working

I had the issue of my Note 10 plus not getting Gmail notifications. I saw that this was happening to others with Samsung devices. But I found a fix on you tube. I followed this to the letter, and it fixed it. Now getting all Gmail notifications, so it should work for the Gmail issue.

https://www.youtube.com/watch?v=5rd6WSA3aVs
 
My wife had a similar problem, turned out to be a setting in "Wear" that sent most of her notifications to her Gear Fit which was set to silent. Turned off the setting in Galaxy Gear Wear app and problem solved.