I cant go pass by accepting icloud TOS, it just repeatedely shows up
https://youtube.com/shorts/MVWxLMU_1yg?feature=share
thats how it looks like
MacBook Pro 14″, macOS 15.5
Try to log out from iCloud, reboot to safe node, reboot normally, then log in to iCloud.
Also do not use any 3rd party virus apps, "cleaners" or "coffee shop VPN" that often corrupt the system.