I’ve seen many more monitor compatibility issues under MacOS than Linux, and have plenty of older hardware that works with reverse engineered Linux drivers, but no longer works with Windows.
I think the common case is that vendors test with the current version of Windows, MacOS and/or Linux (in decreasing priority order), then hope that it the hardware is EOL’ed before the drivers bit rot.
For Linux, however, the equivalent might be "report the bug so an exception can be made for this specific monitor". In other words, it's less important that everybody be immediately happy, as long as bugs can be reported and eventually fixed.
* Shorthand for any OSS kernel and its associated ecosystem