Home Security Camera's recommendation

A friend of mine has a Eufy system. He likes it as it is all wireless and he can't be bothered trying to wire it up.

https://www.amazon.com/dp/B07W1HKYQK/?tag=fabo03-20

I've got an 8-channel Lorex, but this is the last Lorex product that I'll buy. If I bring the app up on my computer I can only look at camera #1 live. The others I can look at recorded video. Not sure what I'll buy next.