have you already tested the "fediverse preview" in #WordPress 6.7?
@TheVoidTLMB no, only for the block editor yet, but I am happy to merge a PR if someone want to work on bringing it to the classic editor.
@johnonolan oh, there is a preview feature in the Gutenberg editor and with WordPress 6.7 you can extend this dropdown, so we added a "Fediverse Preview" to show how your post might look like on Mastodon for example... maybe there will be more in the future...