You are likely understanding it correctly, yes, although it’s a pretty unusual requirement because most people don’t have a static IP at home. With most standard consumer internet plans, your ip address is subject to change at any time. Often, it won’t change unless your connection is reset, but it definitely does change occasionally for most people. Usually, the only way to get a dedicated IP address is to pay extra for a business-class account of some kind. I’d be curious if you employer is really expecting their employees to have a static ip.

That said, if you were traveling around, even using a standard VPN, you’d likely have a different ip every time you connect, so it definitely sounds like you’d want to look for a solution. NordVPN appears to offer a static ip. Another option would be to setup a dedicated PC that you could remote into just for the clock in/out, but that really only works if you could leave it setup at family home or something, because you’d likely need someone to be ready to reboot it if needed.

I have more niche skills. Xamarin developer has been my focus for 5+ years and even thought there aren’t that many projects out there, there aren’t that many experts either.