Workers & pages billing question

Hello, just getting into cloud things so I dont want to burn myself, so sorry if it might be an silly question since.
I`m using free tier workers & pages the deployed app is a Worker that acts as a proxy / gateway in front of a VPS server.
It's forwards incoming HTTP requests to my VPS, and adds a secret auth header only for certain paths.
In a case if I were to exceed the 100k or any other of the limits that the worker has it will just stop working right? Wont get billed for anything?
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