Similar was already request a few times, like in this thread.
I also found an old request for Orca.
I guess it comes down to the problem in the first link.
Bambu uses a custom system and there is no option to add notifications other than what is specified.
If you print directly from SD using the printer console than I really see no easy way at all to establish a notification of any kind.
For the X1 series custom firmware is already possible.
But that happened thanks to a hack, not thanks to Bambu having offered freely.
They announced to do the same for the remaining fleet along with it but firmware after firmware for the P1 and A1 series is provided locked and closed.
The latest for the p! series finally adds the support for offline firmware updates from SD - the first sign of Bambu getting serious with their offer.
Needless to say that until Bambu provides an open bootloader and firmware that won’t require all files to be signed customisation and actually owning your printer stays a dream.