Tried with both builds and still color on macOS 10.15.7 (via wireless printing). And took a check on Windows 10 too, and it seems that it printed gray the page.
Bug 1676191 Comment 3 Edit History
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Tried with both builds and the pages are still printed color on macOS 10.15.7 (via wireless printing). Took a check on Windows 10 too, and it seems that it is not affected by this issue. The page was printed black and white.