Can v3 content be exported to v4 without upgrading?

I have a v3 instance running that I’d like to nuke, then start a v4 instance and have all my old data available.

Upgrading/migrating from v3 to v4 seems like a biiiig hassle with many culprits set up to fail. As I don’t need anything other than the content - users, plugins, etc are not important - is there a relatively easy way to export it from a v3 instance and then import it back into a fresh v4?

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