> e.g. Something like AGPL is considered copyleft and not compatible with 'open source' ethos. Still 'free'

I’ve had to read this several times and still don’t understand what you’re talking about. AGPL is a Free Software license. All Free Software licenses (to my knowledge) provide source access. AGPL is also OSI-approved, so it is also an open source license.

It’s unclear what point you’re trying to make?