When you create Flows and PowerApps you often seek the help of Google. Sometimes it’s just easier to search for the solution on forums, YouTube or sites like this one. And when you do find a solution you will see that almost all of the examples are in English. At that time you don’t want to waste time and energy with searching for the translation of that particular action or formula. So if you haven’t done this already, change the language of your browser into English.
I use Google Chrome (love the profiles) for working with Flow and PowerApps. To change the language press the three dots in the top right and click on Settings (in you’re own language of course). A new page opens, click on the bottom on Advanced. Scroll down till you see the language settings section. Change it into English and restart the browser.