Not sure if this a problem, so I'll post here as an idea.
It would be helpful if Builder would remember its last size and position on the monitor, instead of always opening up maximized to fit the entire size of the monitor. On our 22" monitor it makes for one large Builder. I must always click the middle "restore down" button to get it back to the desired size.
In comparison, Builder 1.0 opens up and remembers the last known size and position.
I am using v. 18.104.22.168980, but it has been acting this was ever since I first started using Builder 2.0.