Many good points, and I largely agree.

But for developers and designers working on user-facing software: I recommend keeping at least one poor to profoundly shitty monitor in your setup. Both resolution and color rendering accuracy matter here.

If you have everyone on fancy MacBooks and excellent high end monitors, you will tend to miss defects in your design that will affect your customers - things like poor color contrast (I don’t think the accessibility tools care about contrast of non-text elements), elements that are too thin to be seen comfortably or lead to weird aliasing, etc.

Microsoft famously made this mistake with their Fluent UI design (or some version of it); 1px borders with huge corner radii that ended up looking “cut off” on standard corporate monitors (like the ones 99.999% of their target audience are subjected to).

P.S. to have some empathy for the corporate IT department, if they are handing out Dell laptops to thousands of people, up until relatively recently they very likely would struggle to handle two or sometimes even one 4K monitor. And Windows high DPI handling is a potentially huge support burden if there is any sort of diversity in the software in use.

Edit: turns out the author themselves wrote about how painful good/4K monitors could be to use. Apparently it was essentially unusable for them in late 2019, although that doesn’t match my personal experience - I was using 4K monitors in windows with only occasional issues as early as 2018. https://etbe.coker.com.au/2019/11/18/4k-monitors/