Most distros have /etc/ssl/certs/ca-certificates.crt, sometimes it is a symlink but that location is there in ubuntu, alpine, fedora and arch.

edit: Also you can usually change this location with an env variable.

man 7 hier is much older than linux itself. The 1994 start date in the article is not doing the history of the tradition justice.

It would have been weirder if the creepy "init system" (with its 58 executables and counting, 52 + 6 arg0 links) dictating the future of that tradition didn't raise some eye brows.