They can see your real IP and determine where you are if you are connected to your company's VPN. I can access a map that displays the location of each VPN connection's origin because I oversee a
https://soax.com/ gateway. Using two different VPN clients on the same link is impossible without problems. Additionally, use a company device. The company may be able to track installed software, preventing you from installing a third-party VPN. Depending on the scale of your business, you might want to read this article on companies coping with remote users who actually moved.