

Even if you do get a copy with ads, it’s trivial to remove it yourself. You can use Handbrake and specify chapter times. Chapter start at open credits. Chapter end just before the ad roll. Chapter start after ad roll. Chapter end at the end of the video.
By not having “None of the above” or an “Other” allowing you to fill in the blank, instantly discards this data as viable. which makes this question pointless to even answer, let alone ask.