My previous laptop was a windows machine that acted as a web browser, music/video player and VirtualBox host. All of my work was done in linux in virtualbox (and my SSH terminal was also bash running on linux in virtualbox).

My linux environment was very minimal though (mostly living in the terminal, used a tiling WM, vim as my editor). In many ways my mac environment isn't that different except without the tiling WM.

That setup worked quite well, although used more resources than if I hadn't used Virtualbox.

Is Putty still a thing on Win or does it have something native?

Putty (or Kitty or MobaTerm) is still a thing, but there are other options. The Linux subsystem will give you a *nix shell and ssh that works exactly like you expect it to. There is also msys which will give you an ssh client you can run directly from cmd.exe or power shell. Microsoft have been working on a proper native port of OpenSSH, but while it apparently works pretty well, it's still not feature complete or ready to be shipped as a standard part of Windows (hopefully early next year).

I use putty. Haven't found a compelling reason to use anything else yet.