People usually don't compile their browsers from source anyway. And of course, technically, a program can check whether monitoring tools are running and adapt its behaviour accordingly, but this is malware territory and it makes no sense for any reputable browser. Also, technically, one can do that on router level anyway and not have this issue. So yes, I would say that analyzing the network is enough.
"People usually don't compile their browsers from source anyway."
But this is a forum that includes people who do compile their browser from source
As such, if promoting a new browser here, it should be expected people may ask about the availability of source code
I use an HTML browser that is a 2M static binary
It compiles quickly and easily on all the computers I own, and these computers are underpowered
This allows me to customise the software
For example, any "features" I do not wish to have, such as telemetry or other "automatic" remote connections, can be removed
NB. I am not expressing an opinion on the "Orion" software, I am commenting exclusively on the statement, "People usually don't compile their browsers from source anyway" appearing in a forum read by people who _do_ compile their browsers from source