Some errors in translation it looks like.
I’ll try and answer for a European perspective.
Aviation tends to be very siloed, once you’re on a Boeing or an Airbus you tend to stay on it for the majority of your career as job opportunities generally require a type rating of either manufacturer.
So in the big scheme of things, if you can switch to an Airbus type without cost to you then take it.
Future employment opportunities in/outside of Europe may depend on it.
Go for the A…