Many clickbait headlines claim that Darth Sidious has been ‘confirmed’ as Anakin Skywalker’s father in the last issue of Darth Vader: Dark Lord of the Sith. That’s not true.
Darth Vader sees Sidious using his powers on Schmi Skywalker’s belly, but it’s all part of a strange vision caused by the dark side of the Force. The vision includes many other things that never happened, like Vader’s shadow killing Yoda or Sidious killing Obi-Wan.
So there’s no confirmation that Anakin was created by Sidious. It could be true, but maybe it’s just Vader’s imagination or a trick of the dark side.