Everyone loves a one number benchmark result but Blackmagic Disk Speed Test is meant to measure sequential speeds needed for editing high end video not for general performance. AmorphousDiskMark is meant to measure both sequential and random access speed. It is more comprehensive and will give a better picture of what different SSD configurations affect performance.
AmorphousDiskMark
Edit: My 1 TB M2 MacBook Air results:
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I just purchased a 2 TB OWC Envoy Pro SX Thunderbolt SSD. I figured that I would compare to my internal 1 TB M2 MacBook Air SSD.
1 TB M2 MacBook Air. 40% used, 17 months old.
2 TB OWC Envoy Pro SX Thunderbolt, 1% used, new.
Overall the random access results are superior which is good though I expect that as the drive is filled up, those results will be reduced. Overall, the OWC SSD seems like a pretty decent TB SSD for $250 with an absolutely bullet-proof enclosure.