Ouch! The Display assembly is a unitized part. Apple does not offer any of the discrete components. Apple has cracked down on factories funneling parts out the back door bypassing the Apple tax.
Sadly, that only leaves you with replacing the whole assembly. Now the not so fun part, Apple introduced hardware serialization a few years ago which limits what you can replace using removed parts (another Apple Tax!) so you need to get the part directly from Apple or one of their parts distributors if you want to fix your system on your own. Here's the site Self Repair and here's the manual MacBook Pro (16-inch, Nov 2023) and here's the parts breakdown page Orderable Parts, jump down to item 36.
Once you replace the display you will need to calibrate it (updating the systems parts serial number) and align the zone backlight with the display.
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How did this happen? It looks like the display was forced back somehow.
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