Hi,
that looks the gps Xtra message which the modem sends when the relevant files download ends.
See also this thread: BG95-M3 Xtra Download Failure
and chapter 1.3 of https://www.quectel.com/wp-content/uploads/2021/03/Quectel_BG96_GNSS_Application_Note_V1.3.pdf
cheers