There is a good number of product companies that have large offices there (Magento, Samsung, GitLab, Wargaming, Grammarly, Ubisoft and a ton more) plus large outsourcing companies pay well and are generally working on large scale serious products
Samsung is a big hardware company, I'm not sure what they would have in software job but why not.
GitLab is a fully remote company, they don't recruit anywhere specifically. Their full disclosure on their (low) salaries and losing customer data is certainly driving away the senior folks I know.
Game companies are the shithole of the industry, the worst conditions and pays, worse than Indian sweet shops and failed SV startups. There is no sane job or career to be made there.
Back to the point. You're going to work in a consulting shop, soon enough.
The companies you quote are not better than a middle grade outsourcing company in these regards, so they're not stealing their talents. If they are the best companies you could think of, that explains why you can find decent developers in the local outsourcing firms.
See https://magento.com/news-room/press-releases/digital-commerc...
They're not a WordPress plugin, and they are a large company.
I don't mean to be rude, but I don't think you know what you're talking about.