I noticed that the multitouch detection does not work reliable when I do not hold the phone in my hand. I noticed this when using Google Maps and confirmed it using a Multi Touch Test App.
When I hold the phone in my hands, a touch with two fingers is detected reliably (e.g., when zooming). However, when I place the phone on the table, only one finger’s touch is detected and only sometimes both fingers are detected.
Can anyone reproduce it with their Fairphone 3?