Disagree. India has a vibrant startup ecosystem that is growing everyday and has produced some good companies like Zomato, Swiggy, Meesho, Zoho, Postman etc and their pay is definitely "somewhat" equivalent for the India cost of living.

In addition to the Indian startups like the ones I mentioned above, India is also a favored outsourcing destination and, because of the population its a huge market for many companies. Most global tech companies have development offices in India and pay good enough salaries for the local market. I'd say that in terms of raw numbers US >> India, but in terms of mobility and options and pay that matches cost of living, they are pretty much the same, with US trying to reduce employee mobility via hostile visa programs.

I am not Eastern European, but I have not heard of many eastern european startups that made it to billions of users. Nor do I hear it as a favored outsourcing destination, not nearly as favored as India. So its not surprising that its hard to find equivalent jobs over there.