A very lousy screen - the already old iPad had 4000 zones and still the owners complain about the visible halos of the symbols on the borders of the zones.
With only 1000 zones, the halos around the text at the borders of the zones will get even more, and as a result, the owners will be forced to turn off this profanity in an attempt to keep up with AMOLED and switch to one common backlight. If this is possible at all, and if the multi-zone does not turn off, then you will suffer with it until the end of the laptop's service life or until you replace it with a normal IPS with multi-row backlight (which eliminates edge light), but with a contrast of 1500: 1.
You also need to consider - what interface is used for the screen panel - if eDP 1.4b - there is a transmission with loss of color in 144Hz mode (DSC lossy compression, this is not a monitor mode), because. for this you need 29Gbit/s, and eDP1.4 has a maximum of 25.92 Gbit/s of payload.. and only if the panels are connected to DP2.0 (at least with UHBR10@4 lines), then we can talk about an honest monitor lossless signal...