You are wrong (or evil). foss, as is, is free as in free beer. There is no sale. It has not to be compared with sold pieces of software like "games" and window

You are wrong (or evil). foss, as is, is free as in free beer. There is no sale. It has not to be compared with sold pieces of software like "games" and windows. And microsoft is doing technical support over some significant (non scammy timeframe) with EOS happening over long period of time (probably legal). proton even being the same kind of software diarrhea than windows, it is still "different" and needs specific effort to maintain compatibility but it has ZERO official technical support, nil, nada, nothing. It is an extreme case and clear cut case. Valve has to come clean about it, as it may backfire.