Edge Cache HTML via Cloudflare Workers vs cloudflare cdn?

what’s difference between Edge Cache HTML via Cloudflare Workers vs cloudflare cdn ( cache) enabled using page rules.

Iam planning to use wordpress https://wordpress.org/plugins/edge-cache-html-cloudflare-workers/ plugin.

Please let me know is there any difference?

It’s the same cache. But the Workers plugin is smarter about what gets cached. I’ve not tried that plugin, but I’ve used the Workers it references.