Which is why you generally don't want NVME raid. You'll never, ever use that much sequential in a consumer environment, and game loading mostly uses random reads rather than sequential. What makes an OS feel snappy and responsive is the lower que depths(i.e q1t1,) which actually get worse or stay about the same when you raid flash together.

The only time i feel like raiding them together is worth it is if you're lazy and want one big storage blob, or if you have unique circumstances that demand ridiculous amounts of ingest speed, like with 4k footage.