Cloudflare VPN don`t work with russian sourses

Ukraine has blocked Russian websites such as:
Cloudflare VPN does not provide access to these resources from today. What`s happened?

The thing is that is not a VPN… It’s just a DNS resolver.

I do not agree with you

It’s simply proxying requests to itself because mobile OSes do not allow custom DNS servers on mobile and even on WiFi sometimes. It’s not a VPN as you intend it.