No notifications on Samsung S21

Hi, I’ve set up my Eufy doorbell and homebase 2…

Works perfectly on my Pixel and my son’s Pixel. I’ve set it up on my wife’s S21 exactly the same as the Pixels… I’ve followed the guides (as best I could… I can’t find the Samsung equivalents of the battery or ‘whitelist’!)

Can anyone advise which setting I must have missed please?!