Thank you for asking a question that you were afraid to.

You could just have easily moved on, but instead you give others the opportunity to share their knowledge and subsequently you give other people opportunities to learn.

Maybe one day we can have an internet not so full of snarky replies, and instead one where everyone is given opportunities to learn, and ask, without fear of being belittled.

In order to give those with knowledge the opportunities to share, we need to ask questions that are indicative of our current understanding (or lack thereof).

It may sound silly, but asking questions really is a vulnerable act. Genuine questions are often met with unjustified and unhelpful hostility on the internet.

tl;dr: Thanks for asking! Now I'm wondering the same thing.

edit: a word

On Linux most distros do not actually ship chrome but chromium which is the open source version of chrome.

It also comes down to how different groups define FOSS. GNU considers even helper programs (like a package manager or firmware installer) to be "bad" for the user because they "encourage" its use so they dont want them included in GNU approved distros like trisqul or guix . this leads to those "freedom respecting" distros not having things like basic WiFi drivers or support for any 3rd party drivers.

To a less extreme degree but similar is a distro like debian, where there is a "non_free" repository available but users can choose not to enable it.

And so GNU sees having the playstore as a bad thing because its gateway to installing other non free software. Its also safe to assume most gnu evangelists probably don't care much for chromium either.

I don't have a precise answer as I'm not from that team, but as a developer I think I have a decent idea as to why, and it's mostly political.

First, I don't think it's necessarily the ability to install Play Services that makes them think it's not FOSS, but that they distribute non-free firmware blobs which are necessary to make practically any modern phone function properly, that's just the unfortunate reality because "we live in a society" that enables it. By that logic, I think they believe the vast majority of running Linux kernels on the planet are not FOSS. GNU would rather have things that are not practical and don't exist today... their stance is not currently realistic in our capitalist society IMO. They hope for things to change, but hope doesn't make change.

I also think some people look down on the Play Services thing merely because they went out of their way to explicitly support it in the OS, and basically nothing else. They disagree ideologically with F-Droid and they don't offer any other app stores by default to my knowledge.