I believe there is a misunderstanding on the definition of BMR for the Garmin Connect developers.
basal metabolic rate - an expression of the rate at which oxygen is utilized in a fasting subject at complete rest as a percentage of a value established as normal for such a subject
On Garmin Connect, BMR is listed for a value that is not my BMR. It appears to be actually my BMR + (TDEE - step calories - activity calories). My suggestion/request is two parts, first allow me to specify a BMR in my profile, secondly correctly display BMR, movement calories, and step, activity calories in the bar graphs.