Login hangs with Safari

Running Safari 17.5 on Mac OS 14.5.

All was working well till today, all of a sudden I cannot login anymore. Other browsers (Firefox/Chrome) work without any problems but Safari hangs after entering credentials in the GUI.

Tried to delete cache and private windows but the result is the same. Any idea what could be the problem?

Edit:
Safari developer console throws this error:
TypeError: globalThis.requestIdleCallback is not a function. (In 'globalThis.requestIdleCallback(this.processMutations, { timeout: 500 })', 'globalThis.requestIdleCallback' is undefined)

Found the culprit, latest version of Bitwarden (2024.6.0).

Removed Bitwarden (and thus the Safari extension) and login works again.

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