Not sure if this still happens, but for groups of 4 that used to want to play together, there was no way to lock the team or kick from lobby. So what would happen is you’d get match-maked in as the 5th player, and as soon as the game started, your team would kill you. This would happen about 25% of the time with random matchmaking.
I ended up quitting R6 Siege because of the toxicity and constant slurs on voice chat. It’s a shame because it was otherwise my favourite competitive FPS.
We already had this, it’s called Intel Optane Persistent Memory and Intel killed it off last year: https://www.intel.com/content/www/us/en/products/docs/memory-storage/optane-persistent-memory/overview.html
The memory speed was slightly slower than DDR4 but the benefits didn’t seem to outweigh the downsides. I think it probably kicked a lot of ass for specific use cases (eg. in-memory database that needs persistence), but the market was too small. Plus, SSDs are getting so ridiculously fast that it would put pressure on a product like this too.