I don't have a problem with commercial software, in fact I pay for quite a bit of it. I don't mind Windows being proprietary, either. However, the problem really is twofold:
The first aspect is that I, as paying user, am getting monetized even further with ads. The default software might be useful, but it's still not what I'm paying money for. If you can't support software at that price, just raise the price instead of deploying sleazy monetization techniques! But for that aspect only I agree; this is dislikeable behavior, but nothing to call Windows adversarial about.
The second problem however, is that Microsoft has crossed the line multiple times now. I have found Skype and Candy Crush (!) installed on a fresh Windows install; the latter definitely falls under "shady mobile game selling gambling tokens". The Windows 7->10 upgrade nags were also far beyond reasonable behavior for what I'd still call "reputable commercial software". Windows will also siphon my data by default and I have no way to fully disable that without third-party software and even then, a new update might include new ways which I then need to keep up with blocking.
Now, I still use Windows for when I need to, but I really don't trust Microsoft with my data anymore. Even if they most likely behave if I spent an hour configuring the system, trusting my data to such a leaky and adversarial platform that has behaved badly multiple times feels like just keeping up an abusive friendship and hoping that nothing goes wrong. YMMV, though, depending on what you like and your threat scenario using Windows might be perfectly fine for you and if so, more power to you!
That being said, yes, most people (in my friend group) did not explicitly pay for Windows, but they bought devices with an included license that the OEM paid for. So they did not directly send money to Microsoft, but they still payed for the OS indirectly (just like they indirectly supported AMD or Intel, for example).
The first aspect is that I, as paying user, am getting monetized even further with ads. The default software might be useful, but it's still not what I'm paying money for. If you can't support software at that price, just raise the price instead of deploying sleazy monetization techniques! But for that aspect only I agree; this is dislikeable behavior, but nothing to call Windows adversarial about.
The second problem however, is that Microsoft has crossed the line multiple times now. I have found Skype and Candy Crush (!) installed on a fresh Windows install; the latter definitely falls under "shady mobile game selling gambling tokens". The Windows 7->10 upgrade nags were also far beyond reasonable behavior for what I'd still call "reputable commercial software". Windows will also siphon my data by default and I have no way to fully disable that without third-party software and even then, a new update might include new ways which I then need to keep up with blocking.
Now, I still use Windows for when I need to, but I really don't trust Microsoft with my data anymore. Even if they most likely behave if I spent an hour configuring the system, trusting my data to such a leaky and adversarial platform that has behaved badly multiple times feels like just keeping up an abusive friendship and hoping that nothing goes wrong. YMMV, though, depending on what you like and your threat scenario using Windows might be perfectly fine for you and if so, more power to you!