Upgrading PXIe to RTOS Compatibility

[Furbs]

First, I haven't a clue how to use this site: https://www.ni.com/en/support/documentation/compatibility/21/ni-hardware-and-operating-system-compat...

Either that, or absolutely all the PXIe's I have are not compatible with anything past 2021, which would be odd because we bought 3 in 2022. 

I also don't know which PXIe-8880 I have out of this list?

Second issue, I went ahead and tried to upgrade one of the controllers from Pharlap to Linux using the USB Recovery Drive. I have many recent versions of the Real-Time Offline Support installed, however now for OS it just shows this:

Third issue is that the controller is offline but my laptop is not and yet I still cannot install software on this PXIe as it says it cannot access the NI Feeds.