I am a security professional and use all kinds of fancy security products in a 100+k IP deployment. They do not do any magical stuff but the alternative is to write your own product.

In a home setting, I do not see how manually analyzing the network logs can help (not to mention that most of the traffic is encrypted). You then have integrity checks on files, IOCs you need to check your files against etc.

Basically this means you have to rewrite an EDR from scratch.

Fancy security products are not always a way to check a box in an audit it also means using a product that you otherwise would need to either write, or put together from many pieces.

Just look at wazuh (open source EDR+) and when you go past the intro you ht some hard walls (especially with updating IOCs from external sources).

Security is really hard, but doing it yourself is really, really hardest.