Practical help
A little clarity.
Before you post.
Understand X’s reply settings and get your preferred default working.
How to Change Who Can Reply to Your Posts on X
Find X’s native reply controls, understand the audience options, and check who can reply before you post.
How to Set a Default Reply Audience on X
Save your preferred reply audience with Reply Defaults for X, apply it to new blank posts, and troubleshoot settings that have not changed.