I watched the link you gave. I already tried using Aurora to do the purchase, but Aurora doesnt allow purchases. This is why I try through the playstore website.
Wat I dont get is why the playstore says I have no devices while MicroG is configured with this account with “device registration”(self translate from “enregistremenet du terminal auprès de Google”) activated.
Also I cant fix the UnifiedNlp error in the microG selftest. (see initial post). How probable is this the cause of my error?
How do I know if the app I’m looking for requires the real google play service?
Then it doesn’t sound good. I can’t help more on this and you may never link your /e/ device to your Google account, even with MicroG.
This part is about the location and shouldn’t be linked to your problem.
A possibility is to un-archived the .apk file and search for a specific file. Someone talk about this recently on the forum. I don’t remember more.
But it means you need the .apk file, so not a really good solution.
It’s always difficult to use Googled stuff with unGoogled things.