Is possible to be pro free software and still use windows?

I think freedom is important, but I don't see propietary software as the devil and I see them more as companies trying to make money, not commit genocide againts whites.

Yeah that's a big problem. I've spent a long time trying to get even very old games to work properly. In the end I've decided it's not worth it (though 2D games work very well most of the time...). Just keep a windows install and turn it on ONLY when you want to play a game. Disconnect it from the net then.

You won't until you want to exercise one of those freedoms.
People like you have blinders on, companies have been controlling your computing with proprietary software, but the users don't see it that way. They don't care that they don't have control over their own computer. Just as long as they can play cat videos, or play their gaymes. I do think a lot of gaymers yearn to have games that are free software. For example if you take a look at Super Mario World, there is a huge scene in modifying the game. Game modifications are a fairly well known concept. While some companies offer some modding apis, there is still things you can't do. Letting the software's master say what you can and can't do is annoying and I'm sure that some realize the problem, but don't understand the solution.

I don't hate capitalism and I think is a better system than socialism/comunism.

I'm more of a free market guy and I don't see a problem with a company having a monopoly on a service they provide.

I never mentioned capitalism. Nothing about free software implies that you can't charge money for it.
I don't like these either
You can't have both. Companies set up an artificial monopoly in which only they can control what their software can do. If it were a free market, you could pay any programmer to take some software you had and for them to improve it and send you back their changes.

most companies goal is to make money, they don't care if you fap to loli diaper shit, they want your data to sell you chinese crap.

I have a Windows install for compiling Windows builds, and disassembling of Windows programs. I don't blame your patience wearing out much if you have unsupported hardware because Linux installs can seriously fuck up in those situations.

Then you probably never encountered the situation where the company drops support and people going back to replay their old games are stuck with something that doesn't work well with their new systems because
a) the company doesn't exist anymore
b) the company sold the ip or some other transfer of rights to another company that doesn't maintain the old game in the least but collects revenue from game sales

You probably never encountered the situation where the developer decides to attract a new demographic and have a game series sequel explicitly cater to that new demographic, at the same time using previous customers' outrage for spite marketing. Meanwhile said previous customers being told to fuck off or make their own game series from ground zero, entirely from scratch, etc.

companies are not charities and they don't have a moral obligation to release their hard work for free.

customers can simply accept a company policy or simply support another company that they think gives them a better service.

Asking for companies to open source their work for no reason other than ideology is not diferent than comunism.

It's not that I disagree with stallman ethics and ethical issues is that he lives in a perfect bubble where everyone is good and perfect, like most communists.

but if I were to pay them $100 for a piece of software they aren't releasing their hard work for free anymore.
I only expect to get the source code when I receive a piece of software from someone. I don't care about the company making it open to everyone.
Free software is not communism since you don't have to share the source with everyone. You can selectively choose who you want to give it too AND you can put it behind a paywall. If it were like communism everyone would be sharing the source code for everything they made for no charge.

you're not forced to buy their software, you can pay a programmer to make you a free alternative if you wanted the code.