Conflicting info is par for the course...some is misinformation but all birds, people, and situations are different.Also, let's say she does great alone all winter and is back to her old self, would it be terrible for me to reconsider and just keep (and spoil) her alone? I've read so many conflicting things about having a single hen.
Some birds do well alone and some do not,
it'll be up to you to decide based on your observations.