Google has put considerable effort into custom hardware to greatly optimize its stack, in a way that is quite notable compared to other tech companies.
- 2021 www.theregister.com/2021/03/23/google_to_build_server_socs/ Google vows to build its own server system-on-chips, hires Intel veteran. Inevitable with the end of Moore's law. Instruction set architecture unannounced however. I'll bet ARM instruction set
- 2021 codec acceleration for YouTube: www.tomshardware.com/uk/news/intel-replaces-xeons-with-custom-vcus