I don't know mate you are talking in circles there is no HiDPI option if you are not on a built-in or 4k+ screen. The OP of the comment thread and the OP of the topic are talking about using a feature that was never public and had to be enabled on the command line. They just disabled this workaround. You also don't understand the feature itself and you are also not understanding why it's bad as an impaired user to base your workflow on unsupported hacks. Here are the accessibility overviews for macOS and Windows [0] [1] and there is no mention of HiDPI in it because it's not an accessibility feature. I really hope you are trolling but no matter if you are or not this is my last post in this comment thread.

Ps: You can save your passive aggressive undertone for reddit.

[0] https://www.apple.com/accessibility/vision/ [1] https://www.microsoft.com/en-us/accessibility/windows