Not sure why you cannot do it. But I can create groups in favourite's and can turn-on all of them in one click.

You can do it in the app too. All you need to do is create a group in your favourite's and for lights you can select multiple lights. https://9to5google.com/2023/06/23/google-home-favorites-light-groups/

iPhone also has over 50% market share in Japan, Canada, Denmark, Norway, Australia and more. Currently it doesn't have 50% market share worldwide. But in more countries it is gaining market share.

What are these edge cases you are talking about? I been using Rectangle for many years and have no issues with multi-monitor setup. My company with over 2000+ devs use this app without any issues.

First of all major corporations contribute to Linux kernel and there is very little contribution to a distribution. Why are they doing it? Because they benefit from their hardware being supported by Linux kernel(e.g Samsung contributing to Linux Kernel for SSD drivers) and now they can sell more, they can do this because it works with their business model. That is not the case with smartphones, in the smartphone world they are selling directly to a consumer and they need to do everything they can to differentiate themselves from other Smartphone makers. Mozilla tried the business model you mentioned but it didn't catch on. Lastly you forget to understand the number of apps available on Google Play vs on Flathub. Google Play has ~3.5 Million Apps vs ~2000 Apps on Flathub. We are talking a different scale here

Also speaking about Flathub, Flathub solves the issue of fragmentation by building an entire OS on top of another OS just to avoid the challenges of backwards compatibility. This has implications like huge app sizes because you are basically downloading the runtime and everything it depends on for each app. It works for most people because storage is cheap and can be upgraded at least in PC world. But still you will have issues with RAM because most flatpaks don't share the runtime and you need to need load each runtime to memory and this implications like higher memory usage, slower app start times because you need to load the entire runtime first before even you start the app.

If you have any corporate backing wouldn't it turn back into same situation as Android? Maintaining the app store, build tools, making new features, patching vulnerabilities e.t.c all require massive amounts of capital. Why would a company openly take initiative to do that? Meanwhile all others could free ride on it? Also any OEM's coming in and customizing it to their liking and not following the standards because they are not bound too like in Android, wouldn't that cause massive fragmentation. Back in the Symbian days this was the case where you need to customize your app slightly for each Symbian device, which meant you had to have the physical device. I remember back in the back in the day your office would be filled with these devices.

Sony phones used to be sold via carrier, it was making huge losses that is what stopped Sony from selling via carrier. Sony phones are still sold via carriers in Japan and even in their home market they are behind Apple, Google and Sharp for total shipment.

What does China having 1.4 billion people mean to Google? nothing, because they have chosen not to do business in that country. So the argument is moot. Even people in China who use VPN, install Google Play store on their phone to access banned apps in China. BTW there are 3 billion 30 day active android phones with Google Play. If you take biggest Android appstore in China it doesn't even have 500 million 30 day active users.

How so? If the alternative app stores where better all OEM's would have flocked to it. Samsung would have completely dropped Google Play and would exclusively only support Galaxy Store. The only market where OEM's use alternative app store is China, because Google doesn't run Google Play in China. Android being open source means anyone can develop an app store and there is nothing stopping anyone. OEM's continuing to use Google Play is because they get access to millions of apps and ad revenue from Google and none of the other app stores can provide that as of now, except in China.