Hi,
You should separate out your platforms and development strategies, in the sense of clearly define the purpose of each.
Render engine,
Physics engine,
Interaction,
Ai
Server(even what each server does)
The reason for this, is you use the best tool for the job for you.
Python can be of interest for all of those,
But also, unity and the likes, you’ll need to develop that part in that language.
Hope this helps.