The Lenovo S345-14 Chromebook uses the Chrome Operating System and the format of a Chromebook keyboard is different than a Windows keyboard. Here is a link to instructions for using the Function Keys within the Chrome Operating System: https://beebom.com/how-enable-function-keys-chromebook/#:~:text=Open%20Chrome%20Settings%20and%20move,with%20the%20left%2Darrow%20key.

Yes. Here is a link to information for turning the touchscreen feature on/off within Windows 10: https://support.microsoft.com/en-us/windows/enable-and-disable-your-touchscreen-in-windows-10-b774e29d-be94-990f-c20f-e02892e572fc

The onboard active pen within the Intel Evo-Certified, Lenovo Yoga 9i-14 model number 82BG000CUS, is not spring-loaded for push removal. Place your fingernail under the edge of the active pen head, visible from the outside of the computer and lift the pen out of its garage with your fingernail.

That will depend on the requirements and compatibility of the specific video conferencing APP you will be using. The Lenovo Chromebook 3 11 model number 82H40000US, ships with a 720p (HD) webcam and microphone built in. It uses the Chrome Operating System and is compatible with Google Play Store APPs. We recommend you check with the specific APPs software publisher's web site for their compatibility with the Chrome operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration.