How to format a drive for networked Time Machine access

Time Machine can use APFS for backups starting in Big Sur, but that seems to prevent networked backups.

macOS Big Sur Time Machine icon
Apple

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Glenn Fleishman is the author of dozens of books. His most recent include Take Control of Your M-Series Mac, Take Control of Securing Your Mac, Take Control of Zoom, and Six Centuries of Type and Printing. In his spare time, he makes Tiny Type Museums. He’s a senior contributor to Macworld, where he writes Mac 911.
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