A:AnswerIt means your Phone will not use WIFI to make a call. If you have a WIFI at home (example Cable Internet) the phone will not connect to this network as the phone was told not to search for this connection.
A:AnswerMy answer will not apply if you use Bixby for home management, security, light, etc. If you do not use it for that, I find either Alexa or Hey Google easier. I wouldn't bother. Easier to add later than completely uninstall.