A good docking station plus KVM for a good work & home setup since the pandemic hit.
I can dock my work laptop when I work from home and have my two screens, ergonomic keyboard, mouse, webcam etc all attached in one go, then a single button on my desk to toggle to my gaming desktop and start playing without having to disconnect anything, reducing wear and tear on the connectors.
For the docking station I got a WD19TB from Dell provided by my employer, and for the KVM I managed to find this one that does 3xDP v1.4 to ensure it supports VRR (I'm only using two monitors, but it's nice to have the extra capacity), has three USB ports (to plug the mouse, keyboard and webcam) and has an audio out + mic in so that my headset follows the computer I'm using.
I made sure to use good DP cables to make sure the capabilities of the KVM and my hardware are always met, and so far it's been quite smooth.
The next upgrade is Synergy (the software) so you can run both systems side by side with the same keyboard and mouse. Been using it for probably well over ten years now and it's become something I can't live without.
If I had a monitor to dedicate for each, sure, but I prefer using all my monitors for either systems I'm using, plus my work computer is on a dedicated network on a VPN tunnel so that wouldn't work well for that anyway.