Every now and then, a song comes out that sounds a little like another. And that never surprises me. After all, it seems like there could only be so many melodies out there. So when one sounds a tiny bit like another, I'd say don't worry about it. And this is one of those cases.
A few people on the internet have noted some similarities, and Disney star Sabrina Carpenter even did her own little mash-up of the songs.
So the same chord progression is there, fine. But when I listen to the two songs, I just don't hear enough of a similarity to worry about it.
Ed Sheeran hasn't commented, and don't believe the idiotic websites that say he "admits he stole" the song. The odds are he didn't and any similarity is just a coincidence. But Ed has quietly added the co-writers of No Scrubs to the song credits for Shape of You -- something he probably didn't need to do, but it puts this matter to bed rather quickly.
Incidentally, Kandi Buruss is one of those getting a writing credit. She's one of The Real Housewives of Atlanta.