I can confirm Creative Cloud has added to my /etc/hosts file.

Adobe secretly modifies your hosts file for the stupidest reason: https://www.osnews.com/story/144737/adobe-secretly-modifies-your-hosts-file-for-the-stupidest-reason/

@marcedwards How is it being modified when /etc/hosts is owned by root? An after-install script run by the package manager?
@linuxandyarn @marcedwards FWIW I do not see any such modifications in my /etc/hosts (macOS Sequoia)
@paregorios If you never allow Creative Cloud to have admin privileges, I guess it can’t ever change the file. +@linuxandyarn