Hi passegua, welcome to the Microsoft community, my name is Bruno Leonel, I am happy to help you.
I understand that you are having doubts regarding the lock screen that does not appear the content about some questions regarding some random images and I will try to help you.
Windows Spotlight is a feature of the Windows 10 and 11 operating system, which will show you images from the Microsoft Bing.com homepage, and let you vote if you want to use one of those images for your lock screen background. This allows Windows Spotlight to configure the look of the lock screen to each user's preferences.
To activate it, follow the steps below:
Click Start.
Click Settings. In Windows setup.
Click Personalization.
Click on Lock Screen.
Select "Windows Spotlight" from the Background menu.
Press Win + L and see if it has changed.
If the answer helped in any way, please mark it as an answer, if your question has not been solved, please post again.
I hope I helped, see you later!