Anyone got saving files from the web on the phone replaced with iCloud Drive? Overall it took over 1h20m or so for download and install this version in my iPho

Anyone got saving files from the web on the phone replaced with iCloud Drive? Overall it took over 1h20m or so for download and install this version in my iPhone. And Settings still displays indexing notification while I have little on the device, and I have disabled searches for every app. So I wonder what it does optimizing and indexing then?