I use iCloud messages, on iPhone and Mac.
For reasons, I wish to archive a long history of messages.
Has anyone successfully done this?

There are dodgy looking apps that ask you to sign into them with your Apple ID - no way am I doing that. I guess if someone can personally recommend one I could change my password and use the app and immediately change password again. Don’t like the idea though.

There are also apps that claim to extract messages and other content from a local phone backup. But this presumably won’t have the whole conversation archive.

Often the advice is just to screen shot and keep scrolling but I have literally years of messages I would like to keep, preferably as text, not screenshots.

Any ideas?

Thanks,
Joseph