According to my preliminary findings, it appears that if your direct GO->HOME legendary/mythical doesn't bear your HOME's TID, it CAN enter your game just fine.
— theSLAYER (@QStheSLAYER) November 20, 2020
(Left row is from my own direct GO transfer, remaining rows are from trades, be it GTS or Friend Trade) pic.twitter.com/LoEfB4n3oL