I would say "insecure by default".
I talked to some Microsoft folks around the Windows Server 2025 launch, where they claimed they would be breaking more compatibility in the name of their Secure Future Initiative.
But Server 2025 will load malicious ads on the Edge start screen[1] if you need to access a web interface of an internal thing from your domain controller, and they gleefully announced including winget, a wondeful malware delivery tool with zero vetting or accountability in Server 2025.
Their response to both points was I could disable those if I wanted to. Which I can, but was definitely not the point. You can make a secure environment based on Microsoft technologies, but it will fight you every step of the way.
[1] As a fun fact, this actually makes Internet Explorer a drastically safer browser than Edge on servers! By default, IE's ESC mode on servers basically refused to load any outside websites.