Cloudflare has been on fire with addition of so many different features/services every year to make web more efficient/accessible for everyone.
I have been using Cloudflare since 2014. I started with just Nameservers/DNS and today I use them for alot of things, some being:
1. Workers for caching API on edge(reduces massive overhead on origin server)
2. Cloudflare pages for hosting static sites(alternative to netlify/vercel)
3. Domain Registration at Cost
4. Cloudflare Access to add auth to third party apps I host
5. Automatic Platform Optimizations (APO) to optimize/serve wordpress blog on edge. Gives a massive boost to google page insights score.
6. Cloudflare Images for automatic image optimization on the fly.
Waiting for them to start providing CDN services like static files caching on edge(currently I used bunny.net).