Do you get the attached message dialog when importing from Library ?
It should be displayed when Max detects different scene units.
If not, and nothing works, i would suggest to run Max using a default profile, to see if there is any difference.
It can be done deleting the following folder (make a backup copy before): C:\Users\<user name>\AppData\Local\Autodesk\3dsmax\2022 - 64bit\ENU