Gregory's Server@lucyllewy @marcan Looks like they were trying to target Android and/or all mobile operating systems, and figured that ARM means mobile, and nobody on a small screen needs 4K (and few have the CPU capacity to handle 4K).
With all the usual limits of UA and platform sniffing as a proxy for device and software capabilities (false positives/negatives + heuristic gets out of date).
@lucyllewy @marcan And that’s usually not arbitrary nonsense, but attempts to deal with real bugs that came up in testing and user feedback.