From “Chromium Debian Package Security” in Dev/Chromium on the Kicksecure Wiki:
The Debian Chromium package is not a production build so basic security features like sandboxing, ASLR and CFI are crippled or nonexistent.
This isn’t true as of January 2022, as chromium-team/chromium@20fe994a1bc3c244ddfc42b5dc5d3c386cbfb372 enabled it and it has been enabled since. I believe that madaidan, nor anyone else simply hasn’t bothered updating it. Either way, I want to make it known, even if it doesn’t really improve the situation.
To correct myself, this is actually partially true still. CFI remains disabled likely due to build failures and other architectures not supporting it, which will probably change once kCFI makes it into GCC. I’ll remain hopeful but it can be said that CFI is not enabled.