This Simple Fix Finally Stopped macOS Tahoe From Freezing and Crashing My MacBook
Fix for macOS Tahoe freezing on MacBook: corespotlightd caused high CPU usage. Disabling “Show Related Content” and “Help Apple Improve Search” in Spotlight settings resolved the issue.
https://www.macworld.com/article/2999630/macos-tahoe-freezing-crashing-macbook-pro-fix.html