This button in the gui I need to use regulary to see the peeformance of the connection. It is often way lower then promised.
Please also read the NOTE: in the bottom of the url , which Dave posted above ( Which btw strongly speak against your FR ), AND to compare your various Device you can use online-speed-tests( there is a bunch of them ) this way you will also have/get a “picture/view” over how you various devices communicate through your Router, i.e phone, laptop, HA-Server, Smart-TV