How to migrate Wordpress safely away from OpenLiteSpeed?

#1
I've got a WordPress site running on OpenLiteSpeed setup on a Digital Ocean droplet.
I've done several site migrations from Apache to Apache and/or Nginx. Normally, the site migration tools I’ve used for other migrations work fine, but this time, OpenLiteSpeed is causing issues. The migrated site is completely non-functional when moved to Apache server.
What core files does OpenLiteSpeed mess with? WordPress itself and several plugins have had issues on this server, so I really need to get this site to good old Apache to stay sane and keep clients happy.

What’s the best approach to ensure a clean migration from OpenLiteSpeed to Apache?
 
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