Their products are built on open source. Android and Chrome come to my mind, but also their core infrastructure, it's all Linux and other FOSS under the hood.
Besides, xkcd #2347 [1] is talking about precisely that situation - there is a shitload of very small FOSS libraries that underpin everything and yet, funding from the big dogs for whom even ten fulltime developer salaries would be a sneeze has historically lacked hard.
Besides, xkcd #2347 [1] is talking about precisely that situation - there is a shitload of very small FOSS libraries that underpin everything and yet, funding from the big dogs for whom even ten fulltime developer salaries would be a sneeze has historically lacked hard.
[1] https://xkcd.com/2347/