By that definition all “Industrial Associations” would not be capitalist.
Personally I would be wary of telling people they should trust the words of the spokespersons of most of them.
There are more than one way in which the elites and near-elites organise to advance their interests and IMHO The Guardian is very much The Voice Of The English Upper Middle Class.
I use a pretty basic one (with an N100 microprocessor and intel integrated graphics) as a TV box + home server combo and its excellent for that.
It’s totally unsuitable for gaming unless we’re talking about stuff running in DOSEmu or similar and even then I’m using it with a wireless remote rather than a keyboard + mouse, which isn’t exactly suitable for PC gaming.
Mind you, there are configurations with dedicated graphics but they’re about 4x the price of the one I got (which cost me about €120) and at that point you’re starting to enter into the same domain as small form factor desktop PCs using things like standard motherboards, which are probably better for PC gaming simply because you can upgrade just about anything in those whilst hardware upgradeability of mini PCs is limited to only some things (like SDD and RAM).