About sums up my experience.
I work on several client's networks during the year. These are global networks and none of them use anything except Windows Defender. No Norton, no Trend, no Kaspersky, no McAfee, nada. They are all bloatware and if anyone thinks it's safer to run more than one AV suite, those false flags you are getting is because these out of date and useless programs are detecting each other.
If you are using freeware, you get what you pay for. If you have a subscription, you get the same (and you're an idiot).