Dear recruiter,

Open space is not a perk.
If someone tells you they want remote, not bit of remote or any other indication,
Why would you ask how much remote is ok?

If someone tells you "i want open space" would you ask "how much open space? Like half office?" No, you wouldn't.
But for sure, what is not acceptable when someone tells you they want remote is answering "that's a shame" if you want to get a developer a job, work, if you want to get cash because of a developer then do that.