Hello,
I’ve made a quick web app for STSA here. Unfortunately it is for viewing only. I will add download options soon. I hope it is okay for everyone 
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If you want a quick demo. Here is a scene ID to use:
S1A_IW_SLC__1SDV_20211228T224808_20211228T224835_041215_04E5E7_534C
For future readers: the scene works as of writing. But it will eventually be taken offline by ESA