Yes. CTM is not (yet) Linux compatible. Linux could access and change the system file of Windows and make the computer unbootable, lose of data and files, etc. They’re researching and developing a Linux solution. I think it will also be good as a rescue CD to install, uninstall, repair, etc. CTM installations on Windows.
I’m not a techie so I don’t exactly know. But I believe Shadow controls reading and writing to create a virtual environment in which (while running) no changes are done to the original files. Changes to (for example) system reg will stay in effect until reboot at which time you get another original copy to work with.
The pro to Shadow for example, I have grandkids - they can’t do any harm.
The con is some software install require a re-boot to complete. If it isn’t legit, without CMT I’m ■■■■■■■.