Possible solution that suddenly fixed my EA app problem (remembering credentials)
Step 1: Connect your phone with your computer instead of using wifi or ethernet cable. Start USB tethering on your phone. (Not over wifi btw, use 4G or 5G connection so you have a different IP Adress.
Step 2: Open EA App. Give in your credentials. Once logged in, play a game in your catalog. After playing a match or instance that needs to be saved close the game, close EA app.
Step 3: Disconnect your phone.
Step 4: Restart Windows.
Step 5: Open EA app and see if you need to give in credentials. In my case i didn't have to anymore all of a sudden after months of typing them.
