The linked tweet in the comments, regarding the nvme rust driver speed is also worth a mention here
Lina is also progressing on the m1 GPU driver https://twitter.com/LinaAsahi/status/1569605011461775362
It’s interesting to get real examples. The security gains at the small cost of performance is definitely something to consider. As the article also said: so far there hasn’t been much tuning and tweaking for performance yet. I assume that will follow once the modules are more stable and performance comes through maturity.