We tried this but found that while Cloudflare pages is great for something simple, they're missing a lot of features that make it truly business production ready. For instance, we use a monorepo, which Cloudflare pages doesn't support.
That's about what I was expecting. I was expecting Cloudflare pages to be pretty basic. It's just a feature owned by a team compared to Netlify's entire business.
Maybe I'll just get enable the Cloudflare proxy for my Netlify sites.