Changing from WP Page bilder to Gutenberg

Hello there πŸ€—
I recently took over an existing Website that was built in 2016 or so with WP Page Builder and Kalium theme.
I updated the plugins and made a Backup (with Updraft) and would like to change the Page Builder to Gutenberg now.
Does anyone know if this can cause any issues?
The Page is quite big and messy, portfolio pages are designed as sites, sites in the portfolio folder, lots of drafts and dead pages, so I was also considering to just start from scratch with another domain and then delete the old page and migrate everything to the original domain.. I can’t really tell what’s more time consuming but I’d definitely like to work with Gutenberg…
Maybe anyone has had the same issue before or might have some ideas what I can do.
Cheers!

 

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