Port WYSIWYG content To New Page Editor Fastest Way?

Issue: After updating to Magento 2.4.x the client doesn’t have easy wysiwyg access to editing their product descriptions anymore. It is within a HTML block inside the new page editor: https://www.screencast.com/t/pm2Oy4djOJ

Have any of you found a fast easy solution to mass port all these over so the clients can edit their content easily again? I know I can disable the new page editor, but I think that just puts the old content in a textarea without the wysiwyg editor so it doesn’t really solve it.