Microsoft is full of those.

When you enter your birthday during Windows installation (yes, you have to have a Microsoft network account to log in to your own computer, and you have to supply a birthday), the button for confirming the date is a small, grey checkmark hiding below the date picker. Clicking the big, blue “Continue” button in the lower corner will discard your date choice (since it wasn’t picked) and then fail form validation because you didn’t pick a date.

There is a certain cubicle masochism associated with this kind of system. I’m convinced that computers did not get easier to use since all of them had command prompts. But you know, it’s got windows!

I login to Win11 everyday and don't have a Microsoft account.

You don’t have to use a Microsoft account if you’re installing Windows 10 and it doesn’t have an internet connection when you run the wizard.

To install Windows 11 without a Microsoft account involves bringing up a command prompt in the middle of the installation process and typing some magic incantations. It's clearly not what Microsoft wants users to be doing.

I got Windows 11 Pro on my new machine for the sole purpose of avoiding that BS (and have it running without an account), but now you can't even do that on new installs without those workarounds. It's a dark pattern akin to Amazon trying to get you to use Amazon Prime when purchasing something on Amazon.

FWIW I didn't have to do this on a Lenovo Thinkpad that I installed last month.