I admit I made a mistake in my previous message.
TLS 1.3 is active by default.
I'm looking to disable TLS 1.1 for a site (but doing it by default would be even better).
I thought removing the "TLS 1.1" from domainname.conf would be sufficient
And a stop/restart of NGNIX.
When I check online TLS 1.1 is still enabled.
So I think that changing *.conf files from /www/server/panel/vhost/ngnix is not the right way to do.