Same as the one I got after upgrading from Bookworm to trixie etc. but with an additional paragraph at the end
NOTICE: To simplify system architecture and maintenance, Crostini has switched by default to a containerless design for new environments starting in ChromeOS version 143 and newer. If you experience unexptected issues with the new design, please report them using the instructions available at .
If you would like to revert to the previous system architecture, you may visit chrome://flags#containerless-crostini in your Chrome browser and set the flag to "Disabled", then restart your device, and un- and reinstall Crostini.
PSA: In order to mitigate the Januscape kernel exploit (see: ), nested virtualization has been disabled for host kernel versions 5.10 and 5.15. To check your host kernel version, you can navigate to chrome://system, find the entry named 'uname', and if it looks something like 'Linux localhost 5.10.XXXX' or 'Linux localhost 5.15.XXX' nested virtualization will be disabled