macOS Monterey v 12.0 and 12.1 are not compatible with MacBook Pro (Retina, 13-inch, Early 2015) : r/MacOS
MacBook Pro 12.1 – Buy Macs
Amazon.com: FORITO 2 Pack Anti Glare Screen Protector Compatible with MacBook Pro 13 Inch Mid 2012-2015 Model A1425/A1502 (Size: 12.1" W x 7.9" H) : Electronics