Hmmm ...
For color negatives ... you can over-exposed by up to 2-stop and still get pretty good details.
For color slide . suggest to under by 1/3 to at most 1/2 stop.
For
B&W and digital,
it is best to under-exposed than to over-exposed the images ..
You may not be able to recover the lost details, however you can shift the curve .... :sweat: