Chrome - exists on Linux, but Firefox is in my opinion a better choice.

Gmail - if you are attached to webmail, that still works. Nearly any distro you pick will also come with a native email app.

PyCharm - JetBrains IDEs work on Linux. No need to switch.

VPN - Your desktop environment will probably have built in controls for a VPN, you just need to get a configuration file from your company.

Windows games - Most games from Steam will just work if you turn on a compatibility setting in Steam, it manages Valve’s own version of Wine for you.

You might find it helpful to look up “Evil Maid Attack” as you will be susceptible to that.