Refusal to let the user decide how they want to use the system. Examples such as:

1. If I uninstall Skype or Candy Crush, I expect them to stay uninstalled. Nope. Each update, Microsoft says "Nope, you need these" and re-installs them.

2. Pushing Microsoft Accounts hard. For most consumers, the copy of Windows 11 they'll get won't even allow them to use a local account. If they're savvy enough, they might be able to look up the PowerShell commands to bypass it, but it's pretty much a done deal for most average people: if you want to use consumer Windows, you're looking at needing to submit to using a Microsoft account for logging in.

3. Ads ads ads everywhere! I don't ever remember Microsoft being this pushy before. It won't shut the fuck up about Microsoft Edge. Hell, I had to put up with fucking Cortana on every install until very recently when they finally decided to drop her useless ass.

They have in general decided to say "fuck what the consumer wants, they'll use our OS how we say."

It continues to lack real mandatory access control, for starters. You can deny system apps permissions and Windows update will just quietly revert them. It has a hidden "user" which cannot be restricted.

ads, start menu becoming tied to internet searches ultimately slowing it down, performance decrease win11 vs win10, Bloatware, Xbox locking game folders, the new context menu.. these are the ones i can quickly come up with

Update to add: The goddamn shortcuts, can't just click and drag from desktop to start menu or taskbar, and vice versa anymore