Just got the Samsung Buds with the credit I got for pre-ordering the Note 10+.
I've been using the 2018 IconX for just about 2 years, and the sound from the IconX is much better. Between that and the features (you have a choice of 3 or 4 functions for the tap/hold on the buds, you get all of the functions at the same time, and more, with the IconX) the 2 Samsung buds are not in the same category.
The missing feature that bothers me is no volume control on the Buds. Apparently you can make it the tap/hold function (one ear volume up, the other down) but then you can't toggle ambient sound, or a voice assistant NJ etc. Plus the up one ear / down the other is sloppy.
The sound on the Buds is not terrible, just a little tinny. The IconX has the best sound of the 5 or 6 wireless buds I've tried.