Although the Lenovo IdeaPad 3 15 Laptop, model number 81WR000FUS, does not have a built in ethernet port, you can connect this laptop to an ethernet cable by using a USB to ethernet adapter like this one: https://www.bestbuy.com/site/insignia-usb-to-ethernet-adapter-white/6418345.p?skuId=6418345

That will depend on the requirements and compatibility of the specific software you want to use. We recommend you check with the specific software publisher's web sites for the software you want to use, for their compatibility with Windows 10 Home 64-bit 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.

That will depend on the requirements and compatibility of the device you want to use with this laptop. The Lenovo IdeaPad 3 15 Laptop, model number 81WR000FUS, ships with Windows 10 S-Mode 64-bit Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. We recommend you check with the specific device manufacturer's web site for their compatibility with Windows 10 S-Mode 64-bit 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.

The Lenovo IdeaPad 3 17 Laptop, model number 81WF004CUS, ships with both a 720p (HD) webcam with manual Privacy Shutter and Dual Array Microphones for video conferencing. Whether it will work with a specific video conferencing APP will depend on the requirements and compatibility of that APP. The IdeaPad 3 17 ships with Windows 10 S-Mode 64-bit Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. We recommend you check with the specific APPs software publisher's web site for their compatibility with Windows 10 S-Mode 64-bit 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.