There are recent threads about this issue here on Dell's forum and this is a common issue being discussed on Microsoft's forum.  There's a Microsoft doc saying they don't recommend disabling/uninstalling any drivers reported as being "incompatible" with Core Isolation. (Can't find that link just now...) On my XPS 8930 desktop, Sonic Solutions driver PxHIPa64.sys is one of several offenders. This driver is part of the Sonic/Roxio software Dell installs on PCs for burning CD/DVDs. We'll just have to wait until these software companies release updated apps and drivers that satisfy Microsoft's demands...
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.sysMediaTec Inc. Import date:             5/22/2022Driver date:               1/22/2016Driver version:          3.0.1504.0Published name:      oem209.inf usb2ser.sysMBB Driver version:          3.0.1504.0Product 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.
Windows Security Memory Integrity disabled after latest BIOS Update (Inspiron 
7306)