Logitech MX Anywhere 2 Faq page 13

5. If Logitech Options Daemon is not there, try the following:

Uninstall Logitech Options

Reboot your Mac

Install Logitech Options again
6. Disable Antivirus and reinstall:

Try disabling your Antivirus program first, then reinstall Logitech
Options.

Once Flow is working, re-enable your Antivirus program.
Compatible Antivirus Programs
Antivirus Program
Norton
McAfee
AVG
Kaspersky
Flow discovery & Flow
OK
OK
OK
OK