Anyway. I run a largeish software team and we have a mix of very experienced devs along with some newer devs who definitely have holes in their skills. We run training in certain areas with the goal of upskilling the team. Especially for security and secure coding practices which aren't taught in universities. There's also a lot of training around good engineering practices and the like. I'm pretty sure most software companies are the same.

Yes, the industry does not train people from absolute scratch like apprentice schemes do. It's very reliant on universities. But I don't see legions of unemployed students: they do get jobs and companies do take over their training to bring them from basic to advanced.