Another thought about the keyboard: Apple offers several keyboard options when buying an iMac. You probably were not aware of them. If you contact Apple, they may be willing to swap the one that came in the box with one of your choosing.
Jon
macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365
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