You also need to consider the key resellers don't replace Steam though,as many of their games need Steam to play the said games,and this would not explain any drops in people using Steam,just any potential revenues.
Whats interesting is both these events have happened pretty quickly,unlike in the past when it took years for regulators to start acting. The issue here is probably overconfidence - they took on Chinese companies,which are essentially state backed,and by extension the Chinese government who seem to be acting much more quickly. Even if they don't charge them,the damage is done - looking at the nationalistic statements from China in the last few years,they will accelerate their own alternatives so they can rely less on foreign suppliers,who can increase prices 50% and above whenever they feel like hence cutting the DRAM suppliers own markets - it reminds me what happened decades ago when the Japanese car and tech industries were ignored too.
It will be interesting to see. Home brew dram manufacturers aren’t going to pop up overnight. I very much hope prices will become sensible but I doubt it. And if Chinese companies start producing ram it’ll take a long time to gain traction in the UK. Unless they buy someone.