Sounds like a virtual machine.
Without the license requirement.
When I worked I.T. 20-plus years ago we were constantly upset that Microsoft never went back to basics and rewrote their programs with stronger and more efficient code, opting instead to keep writing “fixes” on top of the existing structure. Collecting so many as to stop half-a-day of someone’s work they called that a new version of Windows instead of an ‘Update’.
Hence it’s still the go-to operating system for blackhat types to exploit because it still contains decades of sloppy coding that was never truly corrected.
Linux went totally opposite with open source and a community providing constant suggestions and feedback to keep the product efficient, flexible and actually secure. Never will the twain TRULY meet because you don’t purify water just to mix sewage with it.
I’m surely wrong somewhere in this assessment so feel free to whack me in the head with a correction.