Not necessarily. With the paradigm shift Krakoan technopaths have experienced thanks to the naming-as-magic phenomenon once they started internalizing the inclusion of mutant circuits into their view of technology, there's nothing saying there can't be Arakkii technopaths whose powers just work according to a different societal view of technology. Alternatively, there's the fact that the exact connection between a mutant's genetics and what power they manifest has always been handwaved and vague. Who's to say some mutants aren't born in time periods or places that lack the right conditions for their power to be useful, or even make itself known at all?
Krakoa and Arakko could both have mutant inhabitants who spent most of their lives thinking they got a dud when it came to their X-gene, with no real powers they're aware of. They figure whatever their mutation is, its so minor they've never even noticed. And one such Arakkii mutant who always considered themselves weaponless happens to walk past Pixie coming through the gate from Krakoa, busy with something on her phone....which this Arakkii can 'feel' or 'hear' or is getting some kind of sensory input from, in a way that seems to align with how they've heard other mutants describe their powers or how using them feels. They're like "wait, whatever you just did...do that again!" And Pixie's like....umm what? I'm so confused.
Meanwhile, there could be a mutant who can use the gates and lives on Krakoa because they do in fact have an active X-gene.....but they maybe only found out because they accidentally fell through a gate, expecting to just pass through it like other people it doesn't work for, only they actually ARE a mutant so it let them through. If not for that though, they wouldn't have had a clue because they've never actually figured out what their mutation even is. And once exchanges of information or casual social interactions between both mutant nations become more common, an Arakkii might be telling that Krakoan about the history of the Summoning Schools where some mutants learned how to use magic to summon different types of demons...and somehow this leads to that Krakoan discovering their mutant power is a natural connection with those same kind of demons or an ability that closely mimics what Arakkii Summoners do. They'd just had no way of knowing before, because they had no exposure to the demons or magic that would make such an ability reveal itself.
Its like....with how many mutants there are who can wield Darkforce energy or access the Darkforce dimension....imagine a reality where at some point in its past, one of the cosmic entities or forces native to that reality had some reason to block or cut off its Darkforce Dimension's access to the rest of that universe....and vice versa. Even if Darkforce related mutations only appear in a population in response to that Dimension being some kind of environmental influence on a population, or because Darkforce energies were the mutating agent that triggered some mutants' X-genes and they ended up synced or sensitive to those particular energies as a result...with the way not all mutants end up with powers that are distinct from any parents or ancestors they inherited their X-gene from, but instead inherit exact copies of said gene or near enough that they have the same powers as earlier generations of their family....mutations that only exist because the Darkforce Dimension USED to affect a universe or be accessible from it. Like, those specific powers could still be passed down to later generations, even if a cosmic FUBAR way above some poor little X-gene's paygrade had flipped the universe's circuit breaker and cut off the flow of any Darkforce energies to or from it, without CCing said X-genes in the memo that got passed around about it. Idk, maybe it was one of those situations where its like that info is on a Need To Know basis only, and X-genes didn't make the cut.
But yeah, that universe could have gone through several generations of mutants who got the family X-gene with zero awareness of the power that used to go with it, because how're you supposed to detect or know about a power that lets you plug into a particular dimension's socket when somebody moved a sofa in front of said socket or that dimension has left the building entirely, and it took the whole damn socket with it? And then maybe the latest generation of that family line ends up on an Exiles style team of reality hoppers, nervously asking whoever drafted them if they're sure they got the right draft pick or like, did they need someone to handle the team's coffee runs or what exactly was the reasoning here?
And they're just told nah, don't worry about it, just wait til we reach our next stop and it'll all make sense then. There's nothing wrong with your X-gene, your universe just has shitty wiring and you're all plug, no socket there. You can flip the lightswitch all you want, its just never gonna turn on. But don't blame the lamp, the lamp's not the problem, y'know? You don't need a different one, the one you got is great, its just if you want the lamp to work you're gonna have to move to a different house where the right socket for it isn't hidden behind Oblivion's couch. Like that's just all there is to it. You can have a working lamp and a new house, or you can keep the house and the lamp but the lamp's never gonna work cuz your house is a piece of shit. You get that the lamp is a metaphor right? There is no lamp, Alan. The lamp is your power. Your power is fine. The only problem with it is your universe is busted as hell. No offense.