". I make a modest living, feed and cloth my family etc...but any frivolous spending is for birthdays and Christmas..."
So how did you afford a computer with a 3D card? They aren't cheap
".also the linux users mindset is to support foss and foss suporters(like a teacher :) ), but we are generally not a wealthy bunch...some are, but in general nope."
You are speaking for some Linux users. Sounds like they are the reason why commercial developers won't give the platform any of their time.
I was motivated to move to Linux, because I resented spyware masquerading as an operating system. Personal wealth or socialist ideas had nothing to do with it. People who remain on Windows and Apple, I genuinely feel sorry for them, because I know what is being done with their information. So I like the open software part the most.
"I will probably never pay for any tutorial."
If you want free tutorials there are tons on Youtube. After reading the documentation, I used them to fill in areas I didn't understand. The information is out there, but instead of costing you some money to get it in one place, it will cost you a lot of your time to go out and find it.
"still for me 8k+ euros is enough for me to live on for 4 months.."
And what would you do for the rest of the year? Hold Kickstarters 3 times every year? This guy makes a living teaching FOSS, as he explained its not easy. He has to eat just like you and your family, lets let him do it. ;)