I partially agree, however considering you are mentioning banning players I think that when we are talking about an online game it is entirely within their righ

I partially agree, however considering you are mentioning banning players I think that when we are talking about an online game it is entirely within their right (and we should expect them too) to ban someone from playing in an unsupported manner. Cheating is a problem with online games. If they feel like (wether or not the community agrees doesn't matter) that configuration is not secure they don't have any obligation to support it. However, when you paid for the product you should know how something is supported. If you buy it to do something that is not supported you should not leave a negative review. You are punishing them for your choice. There needs to be a serious discussion about what exactly steam did with the steam deck and proton. They put out a new platform and basically told developers, it's now your job to support this. Yes a lot of the work is done by proton but it is not a silver bullet but normal consumers don't understand this. If your game breaks on proton most likely the company just doesn't consider it a platform to test, which is perfectly valid when they never said they supported it int he first place. Yet consumers go to the developers to complain? That makes no sense.