> The fact that mobile phones aren't yet just a standard type of portable computer with an open-ish harware/driver ecosystem that anybody can just make an OS for (and hence allow anybody to just install what they want) is kind of wild IMHO.

It is worth mentioning that the push against open phones never came from big tech but from governments everywhere in the world. Tightly controlled communications was and still is the status quo. People sometimes forget that e.g. in Germany telecommunication used to be a government authority and it was prohibited by penal law to even open a telephone. Things like weak encryption standards and tightly closed down proprietary communication chips inside phones were always intentional.

None of this justifies or explains Google's actions but it puts things into perspective. Personal computing is an outlier, and if home computers had been connected to a network from the start they would probably have been as tightly controlled as all other communication devices have always been.

Unfortunately, the control authorities still exist and seek to gain more power over computing devices and their goals mostly align with the commercial interests of large tech companies, who have basically just become alternative telco providers. So, I estimate that personal computing will be more or less eradicated relatively soon.