Free games all subsidised by the Fortnite cash cow, which as far as I can tell is from children spending pocket money so their parents can get some peace. Devs being given a bigger cut of earnings I don't believe is being done in good faith and would be reverted if they'd managed to challenge Steam. Besides which, what does it matter if you get 20% more of $0 in sales?
Game dev more accessible = Unreal engine has a good ide? Or are you suggesting that slop coding makes game dev more accessible? Am not with you there.
Gabe Newell and Tim Sweeney are both wealthy men. Gabe keeps on making decisions that challenge monopolies and are pro consumer choice; you may argue that that's ultimately in his selfish best-interest but for now Steam is the best store front for gamers. Tim is like a weathervane for spouting the tech-bro fascist quote of the day, props up monopolies and doesn't see any value in people that create games for the love of it. There is quite a difference between them.