Thermalright supposedly has a mounting kit for AM4/AM5

https://www.thermalright.com/product/amd-am4-am5-universal-btk/

If your laptop’s port is capable of it, yes. Your iGPU is capable of it, but some laptops are saddled with only an HDMI 1.4 port. If you have such a laptop, you will need to run the monitor at a lower refresh rate.

No advantages in temperatures, at least. There is an ease-of-handling advantage in being able to relocate the radiator, as opposed to having a big chunk of metal fixed around the CPU area.

If it’s basic use, yes it’s usable

You’ll have to wait and hope Asus puts out a BIOS update for it. My MSI Z690 Carbon got a new BIOS 3 days ago that added support for it.

They probably aren’t able to secure enough fab capacity to do that. AMD has had some problems delivering the volume some of their clients demand before.

not worth the upgrade if you’re just playing overwatch