In the settings, there is an app “Files” where I (suppose) should see all the files in the telephone.
When I use it, I only see “Fairephone 4 5G” and the drives of my different google account.
I put a memory card in the phone : shouldn’t I see it in the list ?
It just so happens that the default option is to format as internal unless the user chooses otherwise.
It seems many, if not most, take the first offered easy option and just ‘Format’
Sadly it’s been like this for years with no ‘warning’ of the possible consequences
Sorry! Looking at your post again I see it was more focused on whether an app decided to store on the SSD as internal memory or the SD as extra internal memory. I think that may be down to the app and Google.
Some apps require a quick response and so will use the SSD others can react more slowly and are palmed off to the SD