Anyway, for most people, compensation and income level are really good, which is why unionization isn't as much a thing for tech workers. This is also because there's a lot of disparity, with some earning $35K / year and others $350K / year for basically the same job; unionization and successful agreements would mean the $35K / year would go up, but the $350K / year would go down by a lot and wouldn't want to cooperate. And that's just salary, then there's stocks, stock options, bonuses, perks, etc to consider.
I'm not saying tech workers shouldn't unionize, all I'm saying is that the incentives are low. Because if you don't want to work under the conditons that e.g. Meta offers, you can vote with your feet and work somewhere else, pretty much anywhere and anything you want.