If Apple would build a modern laptop in an old school ThinkPad bento box rollcage-protected user repairable/upgradable chassis with a replaceable battery, ECC memory and the new ThinkPad keyboard, I'd be all over that...yeah, I know, but one can dream.
At least keyboard-wise there's the ThinkPad Compact USB Keyboard option [1]. Been using it with macOS for about 2 years now, just changed the keyboard modifier settings to make it work like a Mac keyboard (and one could use something like Karabiner/-Elements to map the weirdly placed PrtSc key to Alt/Option). And the Bluetooth version fits nicely over the integrated keyboard when on the go.
I find it compares to other keyboards as the MacBook trackpad compares to other trackpads, that is - it's in a league of its own in terms of feel.
[1] https://support.lenovo.com/en/solutions/pd026745
Edited to add the Bluetooth version.
All of my windows systems run an old copy of win7 and are built from newegg hardware, asus msi etc