Assuming that it is Windows, your work may have keylogging and screencap software. My workplace does, because they deal with customers' money.

Recent versions of Tails https://tails.boum.org/ include a version of Electrum, that works over TOR, for better privacy and safety on your work laptop. You have an option to spoof the MAC address, but on a work network, that could raise red flags as well. Network access could also be tied to an Active Directory user(employee). It has numerous security features: encrypted home directories, disabling scripts, and so forth.

In that case (with Tails), just bring the work laptop home, or use it somewhere other than work. If you are serious about privacy, while using Tails/Tor don't check your real-world email, or Facebook, or Ebay, or anything that ties it to your real existence.

Tails is Linux, so you should be or become somewhat familiar with it before you commit much BTC to Electrum on it. I keep it on a USB key, so I can (mostly) boot up any laptop or PC to it, and have "my stuff". Because it's a USB key, it's easy to clone several/many of them, and keep them in multiple locations. I also scan the contents of my wallet, have copies of important docs, all in the encrypted Tails persistent home directory.