There is documentation which you can check out: https://powerapps.microsoft.com/pt-br/search/documentation/
Are you going to make a course for other people to learn or to educate yourself on Powerapps?
I just replaced the language code (en-us) to the Brasil one (pt-br), like so:
This is what I could find:
but I'm not sure if it's up to date. If you're having problems, your best bet would be the documentation or the forums here 🙂
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