What tech company has ever been at the top and acted nicely?
Google is at the top in Mobile. Yet Android is 90% Open Source. It's not that even that.
If I want to install an APK, I can do it. No need to be a Enterprise or pay $100 for a developer license, anyone can install FDroid. And they let people write competitive software (Firefox, etc.) and set them as default. Actually, as a user, I don't have to see anything be Google if I don't want to.
And don't forget open sourcing TensorFlow.
It's open source in name only. All development is done behind closed doors and essentially dumped out in the open when Google determines it's ready for a release. No one else has say in the development process and you can't contribute changes either.
All the other things you mentioned, can also be done on Windows. I am not sure how that's different than what Windows does/is doing.
2. MS took apple's approach that everything (on their new platform) must go through the store.
Even if right now they give exceptions, it's as I said above an example of them trying to build market share. Will they have an "Unknown Sources" button when they get 80% of the market?
For a long time even the GNU project had a similar cathedral-style approach of secretive development processes and no outside contributions.
You might have a point when there is a CyanogenMod/LineageOS equivalent for Windows.
compared to the openness of Edge/IE, Google are saints with Chrome
Chromium was based on Webkit which actually came from Apple (and who forked it from KHTML from the KDE project). It's not Chromium that's the "basis" of competitors, it's Webkit that was the base.
It's not a binary option (nice vs. not nice) but a range from nice to not nice. Companies fall at different points on that spectrum. As examples; Apple, Google, Microsoft, IBM and Oracle all fall on very different points on this not-nice spectrum when they are/were at the top. The relative positions are subjective depending on who you relate to each (developer, competitor, user, recipient of legal threat or bystander), but in my circles there is a general consensus on the relative positions.
We need to prevent companies from controlling the market, and keep the powerful ones honest and accountable. Hating IBM, Microsoft and AT&T is all about fighting tyranny.
Apple was not Tone Deaf under Jobs, but weren't really ethical.
If Google would block Amazon on search, there'd be such a scream.