Here is AV comparative test results for various AVs if anyones interested. https://www.av-comparatives.org/comparison/
Bitdefender is great, but has a heavier footprint that removes it as an option on weaker machines - covering a lot of lightweight budget tablet / atom / celeron / cheap laptop based machines
No, my grass is greener...
Your own paranoia spy on you but nothing else. Any antivirus, especially with firewall, are licensed by intelligent services before allowed to be sale. Kaspersky still legally present on the UK market, means nothing wrong with it. Only wrong in some people's head.