Any fine or tax is a drop in the ocean. I'd rather the EU committed to using and investing in FLOSS solutions and not pay the money to big tech in the first place.
If nothing else for strategic reasons, mainly being most big tech is in the US. So perhaps on premises, or at least government EU hosted cloud.
We've got trillion dollar companies now, it's past money. They've got the power to manipulate politics. They put a lot of money into lobbying our legislatures.