WPCloudDeploy is a WordPress plugin that allows you to easily deploy and manage your own dedicated high-performance WordPress servers and sites at any cloud server provider.
Okay, I'm having a bad day. I realized now that I just contradicted myself. client_max_body_size is the NGINX directive, and that is working correctly. 🤦♂️
As per the WPCloudDeploy 4.13 release post, the following PHP directives are addressed by the existing FILE UPLOAD SIZE app setting:
Now, this feature will be complete if the NGINX client_max_body_size directive was set in sync with those three.