The Google Pixel 9 has a higher threshold for fast charging, so slow chargers won’t show “charging rapidly” on the lock screen.
I wish they would just show you the actual charge rate like electric cars do. Eg “20w” for 20 watts
Seems like 10w should have become the trigger point, but whatev
Ideally it would just show us the nominal charging rate, as negotiated via the USB power delivery protocol. The OS has this information, but last I checked it was impossible to directly access from userspace. Apps like AccuBattery just monitor the battery usage over time to estimate it.