They chose not to after researching options. Pretty sure they decides account portability was a key feature needed and AP doesn’'t do this. As in taking your account and all your posts and data witj you to a new server. I assume there is a technical reason why this would be very difficult to add to AP/Mastodon otherwise they could have just added it themselves.

No, it does not have this feature, it is very privacy focused so it seems unlikely it would have a feature where tracking individuals is needed.