About Kingsoft Office, I need again to mention that it was developed until 2014, and then it was replaced by WPS Office. They are not the same, and I still prefer Kingsoft Office, which appears more well thought in functionality than its successor.
To find the old version has become, for some reason, very difficult. A repository is still
https://www.apk4fun.com/history/6937/
Kingsoft Office is any version of "cn.wps.moffice_eng" up to version
5.x ; from version 6 on (up to current 10.x) it is WPS Office.
Kingsoft's website had a link to the old product, but at some point they replaced the linked file with WPS Office - which is a very different thing.
I have used this product so much, and I still will. It still seems better than all competing products.
The only real inconvenience I meet with it is the lack of the [CTRL]+[Arrow] shortcut to jump from word to word (a wanted feature when selecting text with [CTRL]+[Shift]+[Arrow] ).