Some of my results:
Desktop Firefox: 25
Desktop Chrome: 26
Laptop Firefox: 16
Laptop Chrome: 20
Laptop Safari: 21
Phone Firefox: 12
Phone Chrome: 10
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Desktop: 5900X, 3090, Linux
Laptop: M1 Pro 14"
Phone: S24 Ultra
Ran all tests in private window to avoid extensions, and gave a minute to cool between tests. Laptop/phone was plugged in.