Eset security incmpatability with Apple OS?

Probably, it is installing extensions that will no longer be allowed in the future starting with Big Sur. I'm sure they will provide an upgrade to their software by that time. Meanwhile, you should remove the software because it's unlikely you need it. macOS provides its own firewall and can encrypt your drives. If you need Wi-Fi protection, then you can get that with a good VPN service. macOS also provides built-in anti-malware software.