It is not a scientific matter, but the interpretation you make of the fallacy must cover scientific matters as well. Otherwise you have multiple interpretations of the same fallacy, but just for different fields, which I have certainly not seen justified anywhere as part of how fallacies work, have you?
Some sources allow the possibility they can be used as an inductive argument (which you should note, is never to be considered conclusive), only if all parties agree on the validity of considering them to be an expert on the required matter. So when I disagree on validity of your expert, seeking to push through his opinion as correct both invalidates the inductive nature of the argument, and constitutes an argument from authority fallacy.
There is no point gish galloping on to an example and plethora of links etc until we can agree on what an argument on authority is.
If we take "argument from authority fallacy" as the search term, wiki being the second one as we are covering. The first is:
https://www.logicallyfallacious.com/...l-to-Authority
Which is quite clear that authorities should only ever be deffered to, rather than appealed to.
And the third is:
https://en.wikiquote.org/wiki/Argument_from_authority
Which again, makes it quite simple, and mentions nothing about an exclusion for a legit authority; quite the opposite in fact when you read the example.
So at best, you're 1/3, but given the rather questionable interpretations of the plain english written in the wiki, it has to be 0 for 3... If you wish to supply me these other 'multiple sources' (which I dispute were ever supplied as you describe them) I'll be happy to read them, just start with your best three and we can go from there
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