If you don’t want a part of your body to get sore, then that part shouldn’t be pushing against something that doesn’t move along with it. That’s the thinking behind the vabsRider bicycle saddle, the two sides of which pivot in time with your pedaling.
This looks similar to the Hobson bike seat I’ve been using for the last couple of decades. I recommend the Hobson - it’s very comfortable. Maybe this one will be great too.