How can I check if Cloudflare WARP is currently running on my Ubuntu system?

You can check the status of the `warp-runner` service using the command `systemctl status warp-runner`. This will show you if the service is active (running), inactive (stopped), or failed. You can also use `ip addr` or `ifconfig` to see if the `warp0` (or `warp1`) interface exists, indicating WARP is active.