Personally, I would not care so much but I work for a big company and background check is done by HR. I only ask technical and work related questions.
HR tend to be risk averse but I cannot really say what their policies are. In my company, I have never heard of anyone who was made an offer by hiring manager, had that offer rescinded after background check.
Also if you volunteer your felony during interview and I have another strong candidate, I will probably go with them. That is because I would be afraid that HR will not allow us to go with you and we will waste everyone's time. I rather go with safer option.
HR tend to be risk averse but I cannot really say what their policies are. In my company, I have never heard of anyone who was made an offer by hiring manager, had that offer rescinded after background check.
Also if you volunteer your felony during interview and I have another strong candidate, I will probably go with them. That is because I would be afraid that HR will not allow us to go with you and we will waste everyone's time. I rather go with safer option.