They'll blame it on WWII but both South Korea and Japan were similarly devastated and both managed to develop world-class technology industries in the ensuing decades.
Europe is the outlier and it's pointing to something fundamentally wrong that it was only able to produce a handful of interesting technology companies in all these years.
You're just blinded by propaganda. Europe has produced thousands upon thousands of interesting technology companies - it's just that very few of them are information technology companies.
Claiming that something is wrong with Europe in general because it didn't produce interesting technology is an utterly ridiculous and uninformed take.