Is cloudflare tunnels really this free to support thousands of internet requests?

I run a windows server at my office where we connect to it using RDP from multiple locations. If I could instead buy the hardware and use cloudflare tunnels to let my team RDP to it then it would save me a lot of money. I could recoup my hardware cost in less than a year. Would this be possible?

(I wouldn't mind paying for cloudflare tunnels / zero trust. It just should be much smaller than the monthly payment I make to Microsoft)