Let's shorten that to: buy reputable monitors, from brand names you recognize. You wouldn't buy a no-name car.

You underestimate my cheapness and lack of caring about my car. Bring me a Chinese cherry car and I'll replace my 10 year old Suzuki

This seems like bad advice. A little bit of Googling for solutions to this found this thread[1] which identified (old) Dell monitors as being one of the problems.

[1] https://embdev.net/topic/284710

That's basically the current state of computers. Some vendors care more than others. I'm sure there are ASUS monitors out there that don't work correctly with ASUS laptops, but if you buy an Apple monitor it probably works with an Apple laptop from the same vintage. That's just how things are. The market seems to prioritize "new" over "good". Doesn't mean you can't do some research to get "new" and "good" though.