I’m going to make a very rare exception of answering this (I do ask that people don’t ask me about Ducktales- for a few different reasons but mostly because I just don’t watch it any more! so I’m not able to answer most things) but I feel like a lot of people get this confusion after getting into the show first and the comics second so imma address it-

basically the new DT show is completely different from the original comics, or it certainly is in a lot of ways- enough to make it pretty unmixable in terms of taking bits from the comic stories and trying to fit them into the show. DT draws inspiration from the comics, but the characters’ personalities, backstories, and interpersonal relationships are vastly different, so it’s best to treat it as a completely separate universe. That’s just how it is! Ducktales is not bad show- just too different for the logic of the comics to apply to it fluidly, so it’s best not to attempt it at all unless you want a headache. 

I stopped watching when I realised it simply wasn’t for me- which is fine! I’m just happy to see more people learning about and loving the ducks, but consequently I don’t know anything about DT Magica or her relationship to DT Gladstone, or if/how that could work as a ship. They are, effectively, strangers to me, so I can’t help there!