People use ICManage quite frequently, which is essentially a Perforce fork. Agreed that Synopsys/Cadence tools are severely outdated and terrible. They need t

People use ICManage quite frequently, which is essentially a Perforce fork. Agreed that Synopsys/Cadence tools are severely outdated and terrible. They need to be rewritten from scratch and designed by actual UX/UI designers for the front end. Their backend algorithms are already state of the art for the most part (e.g. Place and route and simulation). A huge hurdle in making a Virtuoso or Encounter replacement is that foundries are not going to work with you because they already have such deep relationships with Cadence/Synopsys. It's an extremely nontrivial task to get that up and running.