I’m not sure I’m the only one with this problem, I just did a clean install with macOS 11.6.1 and Safari 15.1, and now Safari doesn’t work. It’s an Intel machine. It’s stuck with the beach ball spinning. It’s an SSD based mac, so obviously this never happened before. I’ve killed the non responsive Safari process, rebooted, and so on, nothing seems to leave Safari 15.1 operative. I just can’t use Safari.
Anyone else with this issue? In the meantime, I’ll reinstall Big Sur again and try everything again.