I've never really dabbled with Affinity Designer, but it took me about ten minutes to get something similar and if I had to do it again I'd take five minutes at most.
It's just three circles, two with radial fill, one with a flat fill. My colours are wrong and I could play with it to get closer to your example.
The message is that Xara is no quicker for making this than affinity and it should be pretty simple in any package. Three circles. I didn't bother with the shadow.
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