Following the most recent BIOS Update today, Windows 11 Pro (latest updates just before the BIOS update)  issued a "red" warning on System Security. Windows Security  - Core Isolation  - Memory Integrity says:
Memory Integrity is off. Your device may be vulnerable.

Windows "Check for Update" confirms the system up to date.

Incompatible drivers show

usb2ser.sys
MediaTec Inc.

Import date:             5/22/2022
Driver date:               1/22/2016
Driver version:          3.0.1504.0
Published name:      oem209.inf

usb2ser.sys
MBB

Driver version:          3.0.1504.0
Product name:         USB Modem/Serial Device Driver

Only "USB Modem" connected ever to the device would have been an Android mobile phone for File transfer. Else only USB sticks are approved to be connected to the external USB ports. MediaTec and MBB are not "known", so we assume this a preinstalled Dell driver? The oem209.inf in c:\Windows\INF\ refers to Windows NT...?

Is that driver needed on the Inspiron 7306 or would it make sense to remove and retry. Or is there a more elegant solution by Dell, like an update taking care of this "update bug"? I doubt, as semi-industry-standard Fn-arrow keys still don't work either causing those expensive pieces to be downgraded to spare devices as it's impossible to use, neither in accounting nor programming.