_native?.displayRefreshRate() returns 0 on macOS Monterey and below

[stefanosiano]

Description

A user reported _native?.displayRefreshRate() returns 0 on macOS Monterey and below.
While the user opened a PR to avoid the crash (and we should do it, of course), we may want to have a look at why it returns 0 in the first place

[buenaflor]

I'll check, we use this API for macos: https://developer.apple.com/documentation/coregraphics/1454099-cgdisplaycopydisplaymode

which is available from macos 10.6 which should be compatible

[buenaflor]

let's document that in troubleshooting that we might not support it in lower macos versions