People have always said that Tencent is a company that only plagiarizes, but I don't agree with it all the time, although I once passed it by.
Chrome has always been my default browser on my computer. Recently, because of work needs, I installed QQ Computer Manager and QQ Browser, so I had a fight with them.
After installation, I found that my computer's default browser has changed to QQ browser, and no matter how it is set, it cannot be cancelled.

My first reaction was that the computer steward must have done it. I found the browser protection function module. Sure enough, QQ browser was set as default and locked:

I went to set the default browser with joy, and selected Chrome. At this time, the following prompt came up:

Well, it's my fault. I forgot to turn off the computer butler. Of course, I won't lock it temporarily.
What, Why is it still invalid? No matter how you change it, it is the default of QQ browser?
This is, do you think it will do something wrong by itself? Therefore, another option (another protection) is found in the security of QQ Browser:

At this point, you can finally set the default browser freely!
There are millions of searches unlocked for such problems under Baidu, and the official forum also has a lot of complaints:
http://bbs.browser.qq.com/thread-225668-1-1.html
http://bbs.browser.qq.com/thread-225414-1-1.html
http://bbs.browser.qq.com/thread-203678-1-1.html
http://bbs.browser.qq.com/thread-224875-1-1.html
But why don't the QQ browser team consider it? No other Tencent software is so rogue, so robbers set user attributes. Is it not confident or rogue?
As for the rogue lineage of the QQ browser team, please refer to the historical articles:
https://imzhou.com/archives/129.html
https://imzhou.com/archives/130.html