Changes to default behavior of scp from openSSH version 8 to version 9 require using scp with -O option to override the default use of the sftp protocol. How can scp be configured to use the older protocol?

It should be possible to do this in the user’s ~/.ssh/config file, even for specific hosts, but I cannot figure out how, or even if it’s possible. I’d be satisfied if it were available globally in /etc/ssh somewhere too, if not possible in ~/.ssh/config.