Universal Control is pretty magical. I love having both my work and personal laptops connected to an ultrawide monitor and using my mouse/keyboard (actually Magic Trackpad, Magic Keyboard) across the two.
When I’m waiting for something for work I can slide the cursor over and do something on my personal computer.
My only paranoia is that the work laptop can track what I’m typing but that’s why I use the peripherals connected to the personal laptop to control everything.