Switch a Site from CraftCMS to ExpressionEngine

Are there any ‘How-To Guides’ on switching from a Craft 2 site to ExpressionEngine?

I sit on a committee, where their developer switched them to Craft 2 maybe 5 years ago. Unfortunately, it is poorly set-up and the group that set-up no longer supports it. I’ve been helping them add new templates, adjust code, and make minor/medium changes, but have reached my limit in terms of being able to tell what’s a restriction/limitation introduced by the original developer and their set-up versus the software.

I’m exploring what a clean install of Craft 3 might offer, as well as just moving them to ExpressionEngine 5. I’m far better at EE than Craft and still consider EE a superior product. That could just be because EE suits my development style, like Quark versus InDesign or it could be that I just don’t care or want to have to learn the ins and outs of Twig and Yii to really be able to accomplish the things I want to do. Either way, a change is necessary.

I’d love to know, if anyone has done the transition before. Are there any best practices? Things to be on the look-out for? Should I just export content to .csv files and see what happens?

Their event season starts in May, and they mostly use Craft to manage 2 large annual events, one a stand-alone event, the other a festival-like event (multi-subevents). Any help would be appreciated.