For Baidu AV even though its considered as a companion AV with the 10 security software, claimed by the website itself however from FAQ its literally showed about the basic question.
Can two antivirus software run on my computer at the same time?
It is not recommended to run two antivirus software at the same time. Instead of better protection, there will always be capability error and low performance of PC as well. Therefore, it is recommended to uninstall other antivirus software before installing Baidu Antivirus.
For Kingsoft AV which is still an existed security product, the exclusion between ESS was the components to each other however a high risk and experimental combination which gathered conflicts.