Juraj PPI for people who working with graphics is useless you need to see pixel and all artifacts. You need to be as guide for average users what using normal monitors or you will not notice artifacts and noise on HiPDI panel but they will be too visible on normal monitor. Also than bigger panel then more distant you will sit from monitor and you do not need HDPI with big panel this is useless what you can see from 1meter? This is not mobile panel.
As for VV panel you are also wrong, they are the same as IPS, but both have issues, IPS low contrast not black color and huge glow. VA panel have better in this, it may be loose a bit in colors and black gradient(but this is depend of each panel) whats it, other only plus, nice blacks and contrast. Also it's often have much more brightness what may have HDR support like i have hdr 1000
Ekladiuos benq and many more companies do not develop panels so i prefer to choose from developers, panels makers are Samsung, LG, Philips(TP Vision), AUO that's all if i am no mistaken. Other companies just using the same panels and rise cost, for example HP 43" have identical panel like LG 43" but it cost +300$ for nothing.
You may check two resource with nice test of monitors and choose from their recommendation
https://www.tftcentral.co.uk/https://pcmonitors.info/reviews/