What sank Stadia before it even launched was their asinine pricing strategy. It should have been clear to anyone with a basic understanding of computers that playing a game over the network will be inferior to playing local, but they could have made up the difference with pay as you go pricing and an emphasis on multiplayer games where the graphics don't matter as much. Of course they did the exact opposite, and then decided to double down on bad ideas by ignoring indie developers.
I still think the technology has a lot of potential (well in Stadia's case had a lot of potential), but with that kind of management, even the Covid lockdowns and the GPU shortage weren't enough to save a product that was designed to fail.
People today are even playing Stadia without knowing it thanks to Google's new white-labeling strategy.
Besides, one cannot help but learn programming things from examining leetcode solutions.
Google probably also wants to hire motivated people, and people who will study up on leetcode will be a better hire than a lazy one who doesn't want to put in the work.
I don't doubt that a major reason for asking these types of questions, as opposed to an IQ test or something, is that it is basically illegal in the US to do so.
Avoiding expensive lawsuits is likely another reason for leetcode gates.
Instead, the important strategic decisions are left for various opportunistic short termers, like product managers, directors etc. They are incentivized on shorter time scales and are motivated by prestige, visibility and career advancement. What looks good in a slide deck will be rewarded, basically. These people are much more in touch with internal company politics first and the industry at large second. They are shockingly oblivious to their own user base – (YouTube rewind is the best irrefutable proof for this).
Big redesigns and product changes are rewarded for way too early, imo. Common tenure for a PM is 1-1.5 years, enough for a promotion, and short enough to weasel out before they have to deal with the backlash.
I am no fan of leetcode. I think Google's engineering interview process is mostly RNG. But have you seen mock interviews for the product designers? They're even more inscrutable: https://www.youtube.com/watch?v=qTcXXGJiunA