Screenshot shows 3 GBps for both read and write under Windows. Windows has 3.5/3.3.
I think you are misreading/misunderstanding the performance of modern NVMe SSDs.
SATA based SSDs which it sounds like you have, top out at around 550MByte/sec.
However a PCIE 3.0 NVME can easily achieve 3500 MByte/sec throughput. That's saturating the PCIE 3.0 x4 link. PCIE 4.0 based SSDs are even faster, with advertised 5000MByte/sec throughput (but in testing may top out slightly slower than that)
Yes, modern SSDs are stupid fast.
[0] https://www.techspot.com/review/1893-pcie-4-vs-pcie-3-ssd/