The EDA tools also have close relationships with the fabs like TSMC. Their moats aren't necessarily the software, it's that relationship and the ability to update the software for the latest process.
Open source would always be behind, the fabs don't want other fabs knowing about their process which is why its secluded behind the EDA tools with NDAs.
Open source would always be behind, the fabs don't want other fabs knowing about their process which is why its secluded behind the EDA tools with NDAs.