Actually, from what I can tell in my brief 15-minute internet search, every version of Windows since NT has accepted both because DOS 2.0 supported both. The exception to this was Command Prompt. But, these days, it supports both. Not sure when they made that change in Command Prompt, but I think it’s been that way since at least Windows 7.
I turned off that AI stuff as soon as I saw it. Click the gear icon in Notepad in the upper right to open settings and turn it off.