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faba70f

If you hold down the option key while you click on the Herd icon in the menubar, you'll see all your services. Scroll down to PHP FPM and click on the icon to see the logs.
Oh, it turned out I didn't need to do that after all: I noticed that the “Use PHP 8.x” option wasn't selected anymore, so I had to reselect it. Thanks anyway for the quick reply!

commit faba70f