Here’s a reputable site that says SpaceX is no longer operating (or has otherwise lost) 378 of the 5000 satellites they’ve launched
https://www.nasaspaceflight.com/2023/09/starlink-7-2-6-14/
However that’s an all time number, not just the last few months. The biggest single hit I’m aware of was a batch in 2022 that hit a solar storm that engineers thought they could weather.
I was thinking about hooking one up to a GPS module to run a local NTP server
https://blog.networkprofile.org/gps-backed-local-ntp-server/