TorBrowser 8.0 high cpu usage while idle, in whonix

Also a recent report of high cpu for a Windows TBB user.

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This issue is also being discussed in the recently launched Qubes OS discourse:

Apparently it’s still a problem even with the latest Tor Browser alpha based on ESR78.

Duplicate of bug: restart of sdwdate in Whonix-Gateway causes 100% CPU use of Tor Browser in Whonix-Workstation?