You appear to be wrong if you are talking about Falcon 9. Falcon 9 was reliable until launch 19
There isn't any launch platform with no failures, ever, that's not how you measure reliability. Reliability is measured on percentage of successful launches (payload reached target orbit), and Falcon 9 is, indeed, the most reliable orbital launch vehicle ever, by a wide margin. Here are the platforms with >= 100 launches (the 100-launch line is kind of arbitrary, but you have to draw a line somewhere and platforms with very few launches don't have meaningful statistics):
#1 Falcon 9 (including Falcon Heavy): 637 successes of 640 launches, 99.5% success rate. If you focus only on the block 5 variant (most-flown version, currently flying), it's 572 out of 573, 99.8%.
#2 Atlas V: 106 of 107, 99.1%
#3 Delta II: 153 of 155, 98.7%
#4 Space Shuttle: 133 of 135, 98.5%
#5 Long March 2/3/4: 503/521, 96.5%
#6 Ariane 5: 112 of 117, 95.7%
#7 Soyuz: 1889 of 2014, 93.8%
#8 Kosmos: 559 of 610, 91.6%
#9 Proton: 382 of 431, 88.6%
Soyuz has to get props for the sheer number of launches, of course, though that's probably mostly because the Russians couldn't afford to build another platform. Soyuz isn't a particularly great rocket in any way -- smallish payload, good but not great reliability -- but they kept using what they had. It's also worth noting that assuming Falcon 9 maintains its current launch cadence (which it won't; Starship will probably start taking its launches eventually, and if that doesn't happen, the cadence seems likely to increase), it will match Soyuz' launch count around 2033.