Most of the cores branded "Kryo" have negligible differences from the original Arm cores. There might be some differences in the cache memories and in the interfaces between the cores and the rest of the Qualcomm SoC, but there are no differences in the inner CPU cores.

Snapdragon 865 has standard Arm cores. The same is true for the older Snapdragon 855, Snapdragon 845 and Snapdragon 835, which I am using or I have used in my phones.

The claim of Qualcomm that those cores have been "semi-custom", is mostly BS, because the changes made by Qualcomm to the cores licensed from Arm have been minimal.

That table doesn't have the Snapdragon 810

https://www.qualcomm.com/products/mobile/snapdragon/smartpho...

I worked on it in 2014. The table does have 808 listed. That may have been a lower end version.

Qualcomm got caught being late. They were continuing development of custom 32-bit cores and Apple came out with a 64-bit ARM core in the iPhone. The Chief Marketing Officer of Qualcomm called it a gimmick but Apple was a huge customer of Qualcomm's modems. Qualcomm shoved him off to the side for a while.

https://www.cnet.com/tech/mobile/qualcomm-gambit-apple-64-bi...

Because Q's custom 64-bit CPU was not ready the stop gap plan was to license a 64-bit RTL design from ARM and use that in the 810. It also had overheating problems but that's different issue. There were a lot of internal politics going on at Q over the custom cores and server chips that ended up in layoffs.