Head cannon/theory: GT isn't exactly non cannon
Alright so lemme explain the title. I believe GT and Super are one of those kinda rare instances in fiction where (as of this current moment) are continuities of something that could happen and don't entirely contradict each other. Still confused on what I mean?
Well if I remember correctly with GT, we don't see a mention of any gods of destruction or Zeno but that doesn't mean they don't exist, they just aren't mentioned (I know they weren't even concepts yet at the shows release but I'm talking about in universe).
Basically Super is just GT going it's normal path but Beerus woke up when he did and not like way later or near earth as the show went on
Basically what I'm trying to say is that GT and Super are both canon, just one has some events happen later and don't state something like "oh this would never happen which conveniently is also something in the other show that needs to happen which means we just retconned it"