[SOLVED] On which SSD drive should I install Windows ? (Samsung 870 Evo vs Intel 660p)

Solution
I've heard QLC isn't that great and the performance decreases significantly when the drive fills up.
As with any SSD, don't fill it up.

If you were to have 2 identical systems with those drive, but Windows was on 'the other one' in each system, I doubt you could tell the difference in a blind test.