As a former programmer I completely understand where you're coming from. Live coding with someone over your shoulder and doing productive problem solving work for your employer are two completely different skillets.

As a recruiter that focuses on programming roles I've had many programmers share the same sentiment as you. Some companies understand this others don't care but I find being upfront about the programmers performance anxiety is often very helpful.

Please feel free to reach out (contact in bio )

Good Luck!