Ask HN: Laptop and OS setup for total web development coverage?

As a web developer I was handed a MacBook a couple years ago. Its 'ok'. The keyboard is jank and not being able to span windows over multiple monitors is one of my many minor annoyances with MacOS.

However, I was recently given the chance to switch to a laptop+OS of my choosing. I was eyeing up a thinkpad or xps, but I realized that I have no clue how I would facilitate the testing of Mac specific things like Safari and Apple Pay outside of a VM. Likewise, currently I have a 2nd windows laptop just for the sake of Edge/IE11 testing.

Folks who need to be able to test IE11/Edge/Edgium/Chrome/Firefox/Safari are you using VM's, juggling multiple physical machines, or have some other solution that works for you?