You say:
He uses language familiar to Jewish readers like 'archangel' but does not suggest the Logos is a secondary god, in fact he argues against that.
Philo says:
For nothing mortal can be made in the likeness of the most high One and Father of the universe but (only) in that of the second God (deuteron theon) who is his Logos. Questionis in Genesim 2:62, quoted in Two Gods in Heaven (2020) by Peter Schäfer.